For what values of x is f(x) = x a function?

Answers

Answer 1

Answer:

All real values of x.

Step-by-step explanation:

f(x) = x passes the line test, as it is a simple line with a slope of 1, so by that reasoning, f(x) = x is always a function.


Related Questions

why have I been blocked?

Answers

I’m not sure blocked from what

Plzz help will give brainliest

Answers

Answer: 82.5 - x = R sorry if I am wrong

Step-by-step explanation:

1. We know all the angles in a triangle add up to 180 degrees.

180 = x + x + 15 + R

2. Combine like terms

180 = 2x + 15 + R

3. Subtract 15 from both sides

165 = 2x + R

4. Divide both sides by 2

82.5 = x + R

5. Subtract x from both sides

82.5 - x = R

Divide. 0.021 + 0.11​

Answers

Answer:

0.131

Step-by-step explanation:

you shouldn't be dividing anything if it has a + sign in between the problem. just add up the values and you'll get the right answer.

Solve the equation.
6 -(2p+3)=7-p
The solution set is
I
(Select "all real numbers" if applicable.)

Answers

Answer:

7-p=7-p proved

Step-by-step explanation:

6-(2p+3)=7-p

9-2p =7-p

7-p=7-p

what fraction is equivalent to .45

Answers

Answer:

9/20 or 45/100

Step-by-step explanation:

The equivalent fraction is 9/20

I need to know which of the following is true for each of these questions

Answers

Answer:

D and C

Step-by-step explanation:

6. What number can be added to -4 to get a sum of 0?
a) -4
b) 0
c) %
d) 4

Answers

-4 + x = 0

Add 4 to both sides:

x = 4

The answer is d) 4

Answer:

Let the required number be ' x '

Therefore, according to the given problem

[tex]x + (- 4 )= 0 \\ x - 4 = 0 \\ \boxed{x = 4}[/tex]

Hence, 4 should be added to -4 to get the sum of 0

d) 4 is the right answer.

Identify the vertex of the parabola.

A. (4,3)

B. (2,7)

C. (3,4)

D. (6,7)

Answers

I think is c be cause I took test

Answer:

A. (4,3)

Step-by-step explanation:

     The vertex of a parabola is the maximum or minimum point on the graph of the quadratic function aka where you just have "one value" wether than be the very top, the very bottom, etc

In summary:

Here we can see it'll be the very bottom as the parabola is angled upwards.

Looking at the graph, we can see it is 4 units to the right and 3 units up.

The first number is the x, or the right/left, so our first number is 4

The second number is our y, or the up/down, so our second number is 3

This leaves us with the point (4, 3) and an answer of A!

Hope this helps, have a nice day :D

Question
Find the equation of a line that contains the points (8,-1) and (-2,-1). Write the equation in slope-intercept form.

Answers

Answer:

y = -1

Step-by-step explanation:

(y+1)/(x-8) = (-1+1)/(-2-8)

(y+1)/(x-8) = 0

y+1 =0

y= -1

Which of the following expressions are equivalent to - -a/b

Answers

Answer:

B) [tex]-\frac{a}{-b}[/tex]

Step-by-step explanation:

1. First, we have to know that two negatives equal positive.

2. Given the information above, [tex]-\frac{-a}{b}[/tex] can simplify to [tex]\frac{a}{b}[/tex].

3. Let's go through each answer choice and see which one also simplifies to [tex]\frac{a}{b}[/tex].

A:

[tex]\frac{a}{-b}[/tex] [tex]-\frac{a}{b}[/tex]

B:

[tex]-\frac{a}{-b}[/tex]  [tex]\frac{a}{b}[/tex]

Therefore, the answer is B) [tex]-\frac{a}{-b}[/tex].

Please help!!! I will try to give brainliest!!!

If Jamar can ride his bike 10 miles in 1 hour, how far can he ride his bike in 2 hours? How far did he go in 36 mins?

Answers

Answer:

Jamar can ride his bike 20 miles in 1 hour.

He went 6 miles in 36 minutes.

What is the x-intercept in the linear equation -5x - 4y = 10

Answers

Answer:

x-intercept = (-2, 0)

Step-by-step explanation:

Given the linear equation, -5x - 4y = 10:

The x-coordinate of the x-intercept, (a, 0) is the point on the graph where it crosses the x-axis. It is also the value of x when y = 0.

To find the x-intercept, set y = 0:

-5x - 4y = 10

-5x - 4(0) = 10

-5x - 0 = 10

-5x = 10

Divide both sides by -5 to solve for x:

-5x/-5 = 10/-5

x = -2

Therefore, the x-intercept is (-2, 0).

Please mark my answers as the Brainliest, if you find this explanation helpful :)

answer the question pls pls pls pls pls

Answers

Answer:

2y=5 (3y)

2y=15y

Step-by-step explanation:

sana maka help

Step-by-step explanation:

the value of y= -(15/3)......

PLEASE HELP WILL MARK BRAINEST!!!!
What’s the answer to number 7

Answers

Answer: "If there are not seven days in a week, then Halloween is not on October 31st.", and it is false because the inverse of a true conditional statement is false. Hope this helps and have a great day!

Algebra 2 please help!!

Answers

Answer:

Kelly is correct remainder of 26

please rate BRAINLIEST

Hello again, I need help on this question, pls help me (:

Answers

it’s 4 and 1/2 pounds of sand

For what value of h is y=x2−4x+8 equivalent to y=(x−h)2+4 ?

A = 2
B = 3
C = 0
D = 1
E = 4

Answers

Answer:

A. 2

Step-by-step explanation:

Convert the given function into vertex form:

y = x² - 4x + 8 = x² - 4x + 4 + 4 = (x - 2)² + 4

Comparing the equations we see h = 2.

Correct choice is A

Answer:

[tex]a = 2 \\ \\ y = {x}^{2} - 4x + 8 \\ \\ = 2[/tex]

Homer Simpson finds himself in a panic attempting to meet the April 15th tax deadline. If Homer and his wife have an income of $60,000, earned $1200 in interest, invested $2500 in a tax-deferred savings plan, and have a total of $12,000 in exemptions and deductions, what would be his taxable income?

Answers

Answer:

As given, Income of Homer and his wife = $60000

Interest earned = $1200.

Adding this to total income, we have total taxable amount = 60000+1200 = $61200

Now, investment in tax deferred savings plan = $ 2500

This amount will be subtracted from total taxable income, so amount becomes = 61200-2500 = $58700

We will also subtract the exemptions and deductions = $12000

Amount becomes = 58700-12000 = $46700

Hence, Net taxable income is $46,700

Step-by-step explanation:

Plz Tell me if you can see the pic and plz answer what u know and speak off experience not what you think otherwise your comment is irrelevant and will be reported
I Need this answered please HELP Me ​

Answers

Answer:

Its B, trust me.

Step-by-step explanation:


14. If the product of two numbers is positive, then the two numbers
must both be positive.

Answers

This statement is false, because if you multiply a negative number times a negative number, you will also have a positive number.

Hope it helps!

[tex]GraceRosalia[/tex]

Answer:

False is the correct answer.

Graph
: y – 3 = } (x +2)

Answers

You  would have to have 3 and 1/3 graphed and the put 2 on the x axis

HELP! I will give brainliest!! This is overdue!!!


Ralph wants to build a rectangular deck with a predefined area of 66 feet squared. One side of the deck will be 5 feet longer than the other. To find the side lengths, he first writes the equation (x)(x+5)=66 and later simplifies it to (x-6(x+11)=0, where x is the length of the shorter side. Which of these are the side lengths, in feet, of the rectangular deck? Select all that apply.


1

5

6

11

16

Answers

Answer:

The shorter side 6th ft and the longer sides are 11ft

Step-by-step explanation:

The options are not given, but we could solve and arrive at an answer

say the shorter side is x

and the longer side is x+5

we know that the area of a rectangle is given as

x*(x+5)=66

open the bracket

x^2+5x=66

x^2+5x-66=0

Find two factors of  -66  whose sum equals the coefficient of the middle term, which is   5 .

the factors are 11 and -6

splitting the middle term using the two factors  11  and  -6

x2 +11x - 6x - 66=0

x(x+11)-6(x+11)=0

(x-6)=0

x=6

(x+11)=0

x=-11

The shorter side is 6 ft and the longer side is 11 ft

Match each function formula with the corresponding transformation of the parent function y = (x - 1)2 1. y = ( x - 1) 2 - 3 Translated up by 1 unit 2. y = - ( x - 1) 2 Reflected over the y-axis 3. y = ( x + 3) 2 Translated right by 1 unit 4. y = ( x - 2) 2 Translated down by 3 units 5. y = ( x + 1) 2 Reflected over the x-axis 6. y = ( x - 1) 2 + 1 Translated left by 4 units NEXT QUESTION ASK FOR HELPTURN IT IN

Answers

Answer:

. y = - (x - 1)2                                      Translated right by 1 unit

2. y = (x - 1)2 + 1                                    Translated down by 3 units

3. y = (x + 1)2                                          Reflected over the y-axis

4. y = (x - 2)2                                       Reflected over the x-axis

5. y = (x - 1)2 - 3                               Translated up by 1 unit

6. y = (x + 3)2                               Translated left by 4 units

Step-by-step explanation:

Please answer super easy 10 points

Answers

Answer:

D. 1.9 inches

Step-by-step explanation:

u did the butterfly method so just multiply across & divide so 95 • 9 = 855 and 450 • x = 450x

so 450x = 855

now isolate the variable so divide 450 on both sides

855 ÷ 450 = 1.9

hope this helps

bnjbjbjhvhvh gc gh kghnn n j

Answers

Answer:

?

Step-by-step explanation:

A vehicle travelled (x+4) kilometres within (x²-16) hours. What is the speed of the vehicle?


Answers

Step-by-step explanation:

speed = distance/ time

=> (x+4)/(x²-16) => (x+4)/(x+4)(x-4) => 1/(x-4) km/h.

hope this helps you.

What is the slope of the line shown below

Answers

Answer:

Option:C 2/3

Equation= y=2/3x-5

Answer:

2/3

Step-by-step explanation:

to find slope m, use this method

m=(y2-y1)/(z2-x1)

therefore m=(1-(-7))/((9-(-3))

m=8/12.

m=2/3

Pls help I’m begging I will mark you anything you want .

Answers

Answer:

ljknmi

Step-by-step explanation:

i did this last year

Answer:

k-j is diameter

L-i is radius

N-M is chord

Step-by-step explanation:

jk is 8 units

so length of IL will be 4 units

because radius is half of a diameter.

PLZ HELP ME!!!!!!!!!!!!!! 20 pOINTS

Answers

Answer:

b is the answer I think

Step-by-step explanation:

A jury pool has 23 men and 17 women, from which 12 jurors will be selected. Assuming that each person is equally likely to be chosen and that the jury is selected at random, find the probability that the jury consists of

(a) all men



(b) all women



(c) 8 men and 4 women



(d) 6 men and 6 women

Answers

i think it would be c, i’m not so sure tho
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In fact, in 2010 the European Commission released an analysis of 50 studies conducted on GE foods over the last 25 years and concluded that GE technologies posed no greater risks than conventional breeding technologies....The reason I dont worry about GMOs [genetically modified foods] is not because someone has convinced me with a big study that theyre safe, says Michael Eisen, an associate professor of genetics, genomics, and development at the University of California, Berkeley, and an investigator at the Howard Hughes Medical Institute. Its because when I look at the technology, I understand what this technology is doing. Theyre introducing proteins that have been very well characterized into plants, and I dont see any reason at all to suspect that these are harmful. . . .Some scientists, however, believe questions about the safety of GE foods are far from answered. 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