Which relation is a function?

Answers

Answer 1

Answer:

Step-by-step explanation:

To find out whether a graph is a function or not, you can use the vertical line test, which means if you were to draw a vertical line on the graph at any point, if it would cross over 2 lines, it's not a function. D is the only graph that wouldn't fail the vertical line test.

Related Questions

help me please i am very lost but i am trying

Answers

Answer:

A) is a function because each x goes the one of the ys

B) is not a function due to the x repeating. u can't have that

yes it represents a function cause it passes the vertical line test.

Write the word sentence as an equation. Then solve.

10 more than a number c is 3.

Answers

Answer:

10 +c=3

C=3-10

C=-7

.....

Answer:

c = -7

first, make the equation.

10 more than a number c is 3

the variable is c, according to the sentence.

"10 more than a number c"

c + 10

"10 more than a number c is 3 "

c + 10 = 3

now that you have your equation, time to solve it.

it's important to know that if you do something to an equation, as long as you do it to both sides the equation is still true.

for example.

2 + 2 = 4

if you add 1 to both sides of the equation,

2 + 2 + 1 = 4 + 1

5 = 5

this is still true.

Solving the equation.

c + 10 = 3

subtract 10 from both sides of the equation.

c + 10 - 10 = 3 - 10

c = 3 - 10

c = -7

Which of the following rules describes the function graphed below? On a coordinate plane, points are at (1, 5), (2, 4), (3, 3), (4, 2). a. Output = Input c. Output = 5 · Input - 4 b. Output = Input - 4 d. Output = 6 - Input Please select the best answer from the choices provided A B C D

Answers

*see attachment

Answer:

D. Output = 6 - Input

Step-by-step explanation:

The output is the y-value, while the input is the x-value. The coordinates are represented as (x, y), and are graphed in the figure attached below.

Let's consider the function and see which rule best describes the function.

Considering the point (1, 5), the rule, output = 6 - input, applies.

Let's check it out:

Output is 5, input is 1. Substitute 1 as input into the rule, Output = 6 - input, and see if it would give you 5 as output:

Output = 6 - 1

Output = 5

If you try another coordinate pair of the function, the same rule will apply.

Therefore, the best answer is D. Output = 6 - Input

Can you guys please help me with this math problem

Answers

Answer: I believe that its the second one, the third one, and the fifth one. Have a great day and good luck!

Step-by-step explanation:

Answer:

the first isnt true, the second is true, the third fourth and fifth are correct and the sixth is false

Step-by-step explanation:

Sam starts his hike at an elevation of 311 feet above sea level. When
he reaches the end of the hike, he is 6371 feet above sea level. What
was the change in elevation from the start of his hike to the end?
label optional

Answers

Answer:

6060 feet

Step-by-step explanation:

6371-311=6060

The answer is 6060 feet

what is the value of the expression when a = 3 and b = 5
3a + b - 4

a. 4
b. 7
c. 10
d. 34

Answers

Answer:

Step-by-step explanation:

I just took the test! I got an 80 because I got this wrong but I checked it's 10! <3

Answer: The answer is C.10

Step-by-step explanation: I got it wrong and an 80, I looked to see the correct answer was 10 :3

PLEASE HELP!!

What value of x makes this equation true?

5-2(x + 8) = 6x + 7

Answers

Answer:

Step-by-step explanation:

5-2x+16=6x+7

-2x-6x=7-5-16

-8x=-28

x=28/8=14/4=7/2=3.5

will be nice if you give me brainlies.Good luck!

Evaluate the numerical expression:
(-⅓)-(-⅖)=?

Answers

Answer:

1/15

Step-by-step explanation:

Answer:

1/15

Step-by-step explanation:

Lets simplify, since we need to account for the double negative:

-1/3 + 2/5 = 1/15

What is the value of the 5 in the number 4,567,433?

Answers

500,000
or
five hundred thousandth

hope this helps!

Answer:

it is 5 hundred thousand so thousands place

Step-by-step explanation:

The difference of three times a number and 4 is 8. What is the value of n?
a. -1.3
C. 4
b. -4
d. 1.3

Answers

Answer:

It’s c

Step-by-step explanation:

I just did it in edg

A clothing store uses a markup of 40% on all items they purchase to sell, find the markup is the original cost was 10.2
Please help I’m desperate

Answers

Answer:

$14.28

Step-by-step explanation:

you have to find 40% of 10.20 which is 4.08. Then you add that to 10.20 and you get 14.28. (please give brainliest)

Answer:

4.08

Step-by-step explanation:

25% of 28 is ______.
does anyone know the answer?

Answers

Answer:

it is 7

Step-by-step explanation:

you have to find 50% 28 and to do that you have to do 28/2=14 and then divide that by two 14/2=7 so seven is the answer can i have brainliest

Answer:

the answer is 7

Step-by-step explanation:

8x+5x (im stupid ik)

Answers

Answer:

the answer would be 13x

Step-by-step explanation:

Hope this helps! You are not stupid! Hope you learn how to do it. :)

The answer would be 13x

Which is the first step in solving
X-2 = 2?

Answers

Answer:

The first step is to find a number that when subtracted from 2 gives you 2.

Step-by-step explanation:

The algebraic part of this problem would be to add the -2 (adding 2 to both sides) to both sides, so

first x-2=2, then x-2(+2)=2(+2) which would give us,

x=4

*note: the parenthesis are just to show that we are adding the 2, to make it more understandable.

Solve this equation: -3(x - 14) + 9x = 6x +42
O
Solving this equation results in the statement 0 =0. Because this is a true statement, the equation has a unique solution
O
Solving this equation results in the statement 6 = 0. Because this is a false statement, the equation has infinitely many solutions.
O
Solving this equation results in the statement 0 = 0. Because this is a true statement, the equation has infinitely many solutions.
Solving this equation results in the statement 6 = 0. Because this is a true statement, the equation has no solution

Answers

Answer:

"Solving this equation results in the statement 0 = 0. Because this is a true statement, the equation has infinitely many solutions."

Step-by-step explanation:

6x+ 42= 6x=42

I'M FOR SURE 100%

John and Jane went to a bakery to get cookies for a party. Jane bought x cookies that were $3 each. John bought x cookies that were on sale for $1 plus he got a small cake for $10.00. How much did John and Jane each spend, if they spent the same amount of money?

Answers

Answer:

They spent $15.

Step-by-step explanation:

It's given that Jane bought x cookies, so 3x.

John spent $1 on each of the x cookies he got, and also an extra $10, so x+10.

3x=x+10

2x=10

x=5

So they got 5 cookies each.

5 cookies x $3= $15 (check with $5(1)+$10= $5+$10= $15 )

What does the word “flip” tell you to do in “keep change flip” for dividing fractions a) change the place of the numbers numerator and the denominator for the first fraction b) change the places of the numbers in the numerator and the denominator for the second fraction c) change the places of the numbers in the numerator and the denominator for both fractions d) change the ÷ between the fractions

Answers

Answer:

b) change the places of the numbers in the numerator and the denominator for the second fraction

Step-by-step explanation:

In the phrase "keep change flip":

You "keep" the first fraction.

"Change" the division sign into a multiplication sign.

"Flip" (or switch) the places of the numerator and denominator in the second fraction.

Example:

[tex]\frac{1}{2}[/tex] ÷ [tex]\frac{1}{3}[/tex]

[tex]\frac{1}{2}*\frac{3}{1}=\frac{3}{2}=1.5[/tex]

Hope this helps.

5x – 4y = 9
x - 2y = 3
System of equation

Answers

Answer:

{x,y}={5,4} x is =5 y= to 4

The six lowest temperatures for a certain date were listed
in an almanac as -32, -14, -28, -19, -38, and -21. Which of
these temperatures is the COLDEST?

Answers

Answer: -38 is the coldest because it is the lowest.

I need help PLLS I'll give you the Brainliest

Answers

Answer:

Step-by-step explanation:

21 - (-5) A negative minus a negitive turns into a +

21 + 5 = 26

A. -21 + 5 = -16 NO

B. 21 - 5 = 16 NO

C. 21 + 5 = 26 YES

D. -21 - 5 = -26 NO

Answer:

Step-by-step explanation:

When subtracting a negative, the two negatives cancel out. The rule is that two like signs become positive.

Therefore, +(+) =+ and -(-) = +

So, the equation would be 21 + 5.

again my sisters overdue test someone pls just help I’m doing my math and art homework and can’t help her jggvgrcrvgb

Answers

Answer:

She should get $23.6 in change

Step-by-step explanation:

You add the two items she bought which makes up $89.94, then you subtract the discount of $13.50, which leaves you with 76.44 to pay. If you pay with a 100 dollar bill, you subtract 76.44 from 100 in order to find out how much change you recieve.

Answer:

Step-by-step explanation:

100-((39.95+49.99)-13.50)=

100-(89.94-13.50)=

100-76.44=

23.56

You have to add the amount she is paying for the total then subtract that by the discount. Then subtract how much she gave them by the cost to get the change!

please help me will give brainliest

Answers

Answer:

im pretty sure the answer is c

it is twice as likely for the next spin to land on green as opposed to red.

Explanation:

you can check your answer by multiplying 7(red) twice and you do get 14(green) as your answer.

hope this helped:)

Answer:

Step-by-step explanation:

A is wrong because 5 and 4 are not the same.

B is wrong because there is a higher chance for red to spin than yellow, 7 is more than 5.

C is right because green is double as likely to spin as red, 14 is double of 7

D is wrong because 12 is less than 14

A rectangular garden has length and width as given by the expressions below.
Length: 4 - 7(3x + 4y)
Width: 3x(-2y)
Write a simplified expression for the perimeter of the rectangle.

Answers

2[4 − 7(3x + 4y)] + 2[3x(−2y)]
2[4 - 21x -28y] + 2[-6xy]
8 - 42x - 56y -12xy

the perimeter of given rectangular garden is (8 - 42x - 56y -12xy).

Find the result when 90 is decreased by 85%.

Answers

Answer:

13.5

Step-by-step explanation:

100 - 85 = 15

90 x 0.15 = 13.5

PLEASE HELP WILL GIVE BRAINLIST.
What is the slope of the line in the graph?

Answers

Answer:

x-1

Step-by-step explanation:

Given f(x) = -7x + 9, what is the slope and y-intercept?

Answers

Answer:

7x is the slope,9 is the y-intercept

Step-by-step explanation:

7x is the constant/unit rate,9 is what gets added after which makes the expression non-proportional.

Mrs.Santos has two kinds of flowers in her garden. the ratio of lilies to daisies in her garden is 3:2
if there are 12 lilies what is the total number of flowers in her garden

Answers

Answer:

there would be 18 total flowers in her garden

Answer:

12:8

Step-by-step explanation:

I think this is the answer. I think this help

plzz need help
help a fellow brainly

Answers

Step-by-step explanation:

b= -2A-a

---------------

The third option is right

HAVE A GOOD DAY!

Answer:

its the third one

Step-by-step explanation:

Please help will give brainliest!!!!

Answers

Answer:

answer is c

Step-by-step explanation:

if u add it all up you get answer

What’s meaning of x in math

Answers

Answer:

variable

The letter "x" is often used in algebra to mean a value that is not yet known. It is called a "variable" or sometimes an "unknown". In x + 2 = 7, x is a variable, but we can work out its value if we try! A variable doesn't have to be "x", it could be "y", "w" or any letter, name or symbol.

Step-by-step explanation:

The letter x is usually used in algebra to mean a value that is not yet know.it is called a variable or sometimes an unknown hopefully this helped u:)

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