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3 years ago

PLEASE HELP ME I SUCK AT MATH

1 answer:

6 0

ANSWER:
A. y= -4x - 4

EXPLANATION:
y2-y1
——— This is used to find the slope
x2-x1

4-(-4)=8
0-2=-2

8/-2=-4
So the slope should be -4.

Since the y-intercept is shown in (0,4), the y-intercept is 4.

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Answer:

I think that it D

Step-by-step explanation:

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A= 30% but the question doesn't even have a 3 in it, so therefore it cannot be A.

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So I say D

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3 years ago

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3 years ago

A running tap dispenses 0.15 gallons of water every second. How many pints of water is dispensed after 20 seconds? Show your wor

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3 years ago

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Determine the domain and range for t (x) = -(x +10)2 - 64

kirza4 [7]

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3 years ago

Again help, i don’t understand this at all

Semenov [28]

Answer:

The difference quotient of f is 8. Option C

Explanation:

Difference Quotient

Given a function f(x), the difference quotient is defined as

$\displaystyle d=\frac{f(h+h)-f(x)}{h},\ h\neq 0$

The function provided in the question is

$f(x)=8x+1$

Find f(x+h) by substituting x by x+h:

$f(x+h)=8(x+h)+1$

$f(x+h)=8x+8h+1$

Now compute:

$\displaystyle d=\frac{8x+8h+1-(8x+1)}{h}$

Operating:

$\displaystyle d=\frac{8x+8h+1-8x-1}{h}$

Simplifying:

$\displaystyle d=\frac{8h}{h}$

d=8

A. Incorrect.

This choice is different from the answer.

B. Incorrect.

This choice is different from the answer.

C. Is correct

The difference quotient is 8 as explained above.

D. Incorrect.

This choice is different from the answer.

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3 years ago