Question

Using the graph below, calculate the average rate of change for f(x) from x = 0 to x = 2.
x = −4
x = −2
x = 2
x = 4

Answer 1

@sammixboo

Answer 2

find the change in y divided by the change in x between the two points

Answer 3

How?

Answer 4

f(2) - f(0) / 2- 0

Answer 5

f(0) = -2 , f(2) = 5

Answer 6

Huh?

Answer 7

Put your finger on x=0 (on the x-axis, where x is 0)
move your finger down until you reach the "curve" (called f(x))
how many steps down did you move ?

Answer 8

-2 steps

Answer 9

so B?

Answer 10

that means (0, -2) is the first point
now do the same for x=2 (except you move up to find f(x) )

Answer 11

How do I do that?

Answer 12

isn't it (2,5) @phi ?

Answer 13

put your finger on the x-axis at x=2
move your finger up until you reach the curve. How many steps?

Answer 14

2 down and 2 to the left