Question

Help please, Will Medal.

The graph below plots a function f(x):

Answer 1

If x represent time, the average rate of change of the function f(x) in the first three seconds is ___.

Answer 2

the average rate of change is identical to the slope of the line

Answer 3

and slope is change in y divided by change in x

Answer 4

Positive slope, so it's increasing...

Answer 5

yes, but they probably want a number

Answer 6

they do

Answer 7

pick two points on the line that are easy to read off. can you do that ?

Answer 8

220 y axis
3 x axis

Answer 9

(3, 220)

something like that?

Answer 10

yes. and how about (0,100) for the other point

Answer 11

ok, that was gonna be my next one

Answer 12

slope is change in y divided by change in x

Answer 13

ok so, the change in x is 3

change in y is 120

right?

Answer 14

yes

Answer 15

so the slope is 40

Answer 16

yes

Answer 17

okay, thanks! :)