Marking as brainyest PLEASE HELP How does f(x) = 9x change over the interval from x = 3 to x = 4? A) f(x) increases by 100% B) f(x) increases by 800% C) f(x) increases by 900% D) f(x) increases by 1000%

C) f(x) increases by 900%

Step-by-step explanation:

The rate of change is

f(4) - f(3)

4-3

f(4) = 9*4 = 36

f(3) = 9*3 = 27

36 -27

4-3

9

1

The rate of change is 9

To change to a percent, multiply by 100%

9*100% = 900%

Increases by 900%

Step-by-step explanation:

● f(x) = 9x

The rate of change is:

● r = (36-27)/(4-3) = 9

So the function increses nine times wich is equivalent to 900%

a² + b²= c²

24² + 7² = c²

c= 25