Question

What is the average rate of change of the function f(X)= 2x - 1

-1

2

-2

1

Answer 1

2

Explanation:

The average rate of change of the function f(x) is

`(f(b)-f(a))/(b-a)`

1. At
`a=1,`

`f(1)=2\cdot 1-1=1`

2. At
`b=2,`

`f(2)=2\cdot 2-1`

The average rate of change is

`(3-1)/(2-1)=(2)/(1)=2`