Use the function f(x) to answer the questions: f(x)=4x^2-7x-15 Part A: what are the x-intercepts of the graph of f(x)? Show your work(2 points) Part b: Is the vertex of the graph of f(x) going to be maximum or minimum? What are the coordinates of the vertex? Justify your answer and show your work (3 points) Part c what are the steps you would use to graph f(x)? Justify that you can use the answer obtained in part a and part b to draw the graph. (5 points)

Answers

Answer 1

Answer:

(Hope this helps can I pls have brainlist (crown)☺️)

Step-by-step explanation:

To find the x-intercept, substitute in 0 for y and solve for x .To find the y-intercept, substitute in 0 for x and solve for y .

x-intercept(s): ( [tex]-\frac{5}{4}[/tex] , 0 )

y-intercept(s): ( 0 , − 15 )

Vertex: y = 4 ( x - [tex]\frac{7}{8}[/tex] )^2 [tex]\frac{289}{16}[/tex]

Graph in pic

Use The Function F(x) To Answer The Questions: F(x)=4x^2-7x-15 Part A: What Are The X-intercepts Of The

Related Questions

please explain and give answer

Answers

Angle 1=87°

Angle 2=88°

angle 1+2= 177

Step-by-step explanation:

I believe thsi should be right,

So angle 1 and 87° are the same because of some rule, then the angle above 2 would be 92 because of the same rule and its a straight line so 180-92=88 making angle 2, 88. When you add those it would be 177. Try that

How do I calculate a angle that is not named?

Answers

On his last three math tests, Mark scored 85, 95, and 80. What grade must he get on his next test
to have an average of 90 for all four tests? (Write an equation; then solve to find the answer.)

Mia is three years older than twice her sister Brooke's age. The sum of their ages is less than 30.
What is the greatest age Brooke could be?

a.) 7
b.) 8
c.) 9
d.) 10

Answers

the correct answer is b. 8

The answer is b.) 8

What is the value of x?
12 ft
13 ft
X ft

Answers

14 ft ,im 99 percent sure

when visiting baltimore md you need to rent a taxi to get from your hotel to the national aquarium. the taxi company charges a flat fee of $3 for using the taxi and $0.75 per mile. if you paid the taxi driver $24 how many miles did you travel

Answers

Answer:24-3 = 21 divided by .75 = 28 so the answer is 28 miles

Step-by-step explanation:

Sumita buys a set of earphones for £13.42.
She pays with £15.
How much change does she get?
Give your answer in £.

Answers

Answer:

Okay the answer is £1.56

Step-by-step explanation:

£15.00

-£13.42

£01.58

Brainliest if you liked the answer.

01234 4 5 6 7 8
9
A diver descended 43.52 feet in 13.6 minutes. What was the diver's average change in elevation per
minute?

Answers

43.52 / 13.6 = 3.2

the diver’s average change in elevation per minute is 3.2 feet.

solve for y
6x - 3y = 15
hint - subtract 6x, divide by -3, simplify

Answers

Answer:

y=2x-5

Step-by-step explanation:

1) Factor out the common term 3

3(2x-y)=15

2)Divide both sides by 3

2x-y=15/3

3) Simplify 15/3 to 5

2x-y=5

4) Subtract 2x from both sides

-y=5-2x

5) Multiply both sides by -1

y=-5+2x

6) regroup terms

y=2x-5

A child flies a kite at a height of 90 ft, the wind carrying the kite horizontally away from the child at a rate of 30 ft/sec. How fast must the child let out the string when the kite is 150 ft away from the child?

Answers

By Pythagorean theorem and differential calculus, the child must let out the string when the kite is 150 feet away at a rate of change of 25.725 feet per second.

How to determine the rate of change of the string

The geometric representation of this question is based on the Pythagorean theorem:

l² = x² + y² (1)

Where:

x - Horizontal distance of the kite from the kite, in feet.y - Height of the kine, in feet.l - Length of the string, in feet.

The rate of change of the length of the string is obtained by differential calculus:

[tex]2 \cdot l \cdot \dot l = 2\cdot x \cdot \dot x[/tex]

[tex]\dot l = \frac{x\cdot \dot x}{l}[/tex]

[tex]\dot l = \frac{x\cdot \dot x}{\sqrt{x^{2}+y^{2}}}[/tex] (2)

If we know that x = 150 ft, y = 90 ft and [tex]\dot x = 30\,\frac{ft}{s}[/tex], then the rate of change of the length of the string is:

[tex]\dot l = \frac{(150\,ft) \cdot \left(30 \,\frac{ft}{s} \right)}{\sqrt{(150\,ft)^{2}+(90\,ft)^{2}}}[/tex]

[tex]\dot l \approx 25.725\,\frac{ft}{s}[/tex]

By Pythagorean theorem and differential calculus, the child must let out the string when the kite is 150 feet away at a rate of change of 25.725 feet per second.

To learn more on rates of change: https://brainly.com/question/13103052

#SPJ1

Jason multiplied 1.5 by a power of ten and got 150. What power of ten did he multiply by?

Answers

Answer:

Jason multiplied 1.5 by the whole number 10.

Step-by-step explanation:

As opposed to multiplying 1.5 by the tenth power, in which Jason would've received 57.66503..., he multiplied 1.5 by 10 units, resulting in a product of 150.

Hope this helps!

The power of ten did he multiply by 2.

Given that;

Jason multiplied 1.5 by a power of ten and got 150.

Let us assume that;

The value of power = x

Hence it can be written as,

1.5 × 10ˣ = 150

Divide both sides by 1.5;

10ˣ = 150/1.5

10ˣ = 100

It can be written as,

10ˣ = 10²

This gives,

x = 2

Therefore, the value of power is 2.

To learn more about the multiplication visit:

https://brainly.com/question/10873737

#SPJ3

What value of x would result in the numerical value of zero in the expression?

x+1+(−1)

Answers

Answer:

x = 0

Step-by-step explanation:

Lets make an equation.

x + 1 + (-1) = 0

=> x + 0 = 0

=> x = 0

Kind request:

Please give me brainliest :)

For f(x)=4x+1 and g(x)=x^2-5, find (g/f)(x)

Answers

Answer:

[tex](g/f)(x) = \frac{g(x)}{f(x)} = \frac{ {x}^{2} - 5 }{4x + 1} [/tex]

I hope I helped you^_^

Tell whether the sequence is arithmetic, if it is, write a function rule to represent it.
4, 6.5, 9, 11.5, ...

Answers

the next number is 14, it is going up by 2.5

Which of the following could you use to solve this problem?

What is 25% of 37?

=
p = (0.25)37
= w
· 37

Answers

Answer:9.25

Step-by-step explanation:

25% of 37 is 9.25
25%=1/4
37 divided by 4 = 9.25

||3x-4|-5|>1
Please Help Me!
20 points!

Answers

Answer:

4(3 −1)−5=75

Step-by-step explanation:

Plz help i am so S t u p i d

Answers

Answer: 23, 5, 3

Step-by-step explanation:

Problem a)

5 + 2 x 3^2

5 + 2 x 9

5 + 18

Problem b)

7 + 8 / 5 - 2

15 / 3

Problem c)

18- 3 x 2/ 5 - 1^2

18 - 6/ 5 - 1

12/4

Answer:

a is 7×9=63 b is 15 /3=5c is 30 / 4 = 7.5

I don't think you should doubt the ability to do well you should have confidence in your self .

Identify the slope-intercept form and the graph of the line described by the equation 3x − 3y = 15.

Answers

Answer:

The slope-intercept form is y=x-5

The graph is in the picture below

Step-by-step explanation:

To find the slope-intercept you need to move y all by itself:

y=mx+b

subtract 3x on both sides:

-3y=-3x+15

Divide by -3 on both sides:

y=x-5

Hope this helps!

(Why I took two pictures is because to show you that the line is the same even with it being slop-intercept form)

Can I please get help on this I don’t understand it :( BRAINIEST

Answers

It’s 14 because 14 is the Double of 18 so it’s 14

what is x? -8=-(x+4)

Answers

Answer:

x=4

Step-by-step explanation:

What’s the length of line segment VT

Answers

Answer:

My answer is 13 units

Step-by-step explanation:

Hope it helps

can someone please help

Answers

Answer:

3rd option

Step-by-step explanation:

Substitute x = 0 into f(x) and check if the result is - 6

f(0) = (0 + 1)(0 + 2)(0 + 3) = 1 × 2 × 3 = 6 ≠ - 6

f(0) = (0 + 1)(0 - 2)(0 - 3) = 1 × - 2 × - 3 = 1 × 6 = 6 ≠ - 6

f(0) = (0 - 1)(0 + 2)(0 + 3) = - 1 × 2 × 3 = - 1 × 6 = - 6 ✔

Thus the 3rd option crosses the y- axis at (0, - 6 )

What is the largest number of sections you can get if you draw 4 straight lines through a circle?

Answers

Answer:

The correct answer is 11 sections.

Step-by-step explanation:

Hope This Helps!

HELPPPPPPPPPPPPPPPPPP

Answers

x²y+2xy²+6x+4

please mark BRAINLIEST!

Answer: The correct answer is B

Step-by-step explanation:

In triangle ABC, AB = 2x cm, AC = x cm, BC = 21 cm and angle BAC = 120°. Calculate the value of x.

Answers

Answer: here, mark me as brainliest if you want please

A shopkeeper bought a fan for rupees 840 at what price should he sell it to make a profit of 10% If he makes a loss of 5% by selling at what is the selling price

Answers

Answer with Step-by-step explanation:

10% of 840 can be found by multiplying 840 by 0.10 (or dividing 840 by 10)

10% of 840 = 84

To make a profit of 84 he needs to sell at 840 + 84 = 924 rs

5% of 840 can be found by multiplying 840 by 0.05 (or dividing 840 by 20)

5% of 840 = 42

To make a loss of 42 he needs to sell at 840 - 42 = 798 rs

2. what equation passes through the 2 points (0,5) and (-12, -1)

Answers

Y = 2x + 5 i think???

determine the intercepts of the line

Answers

Y intercept is (0, 2.5)
X intercept is (3.5, 0)

find the circumference whose radius is 20cm take 3.14

Answers

Step-by-step explanation:

please mark me as brainlest

Somebody help me please

Answers

15-(12-10)+9
15-2+9
13+9
22

urgent!!!! math problem

Answers

120 degrees = 3x because of vertical angle theorem.x=40 degrees and then you plug it in to 2x+15=95 degrees and because of vertical angle theorem angle TVZ is equal to 95 degrees

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