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3 years ago

7

PLEASE HELP WILL MARK BRAINLIEST!

2 answers:

nlexa [21]3 years ago

6 0

Answer:

He did the equation backward. He did $\frac{x_2-x_1}{f(x_2)-f(x_1)}$ , which is wrong.

The actual equation for average rate of change is:

$\frac{f(x_2)-f(x_1)}{x_2-x_1} =$

$=\frac{18-8}{10-6}$

$=\frac{10}{4}$

$=\frac{5}{2}$

gizmo_the_mogwai [7]3 years ago

4 0

Answer:

Answers are below

Step-by-step explanation:

A) Erik did not use the correct points. When you use an x value, also use the f(x) value that goes with it. Erik chose random numbers to show the rate of change.

B) I chose two x values and the f(x) value that go with them. $\frac{10 - 7}{18 - 10}$ = $\frac{3}{8}$ is the rate of change.

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