What th average rate of change for f(x)=2x-1

Answer 1

Since the function is in slope-intercept form, the rate of change (slope) is 2.

Answer 2

Hi Emily,

average rate of change for f(x)=2x-1 is

(f(x + h ) - f ( x)) / h

(2 ( x+h ) - 1 - ( 2 x - 1 ))/h = (2x + 2h -1 -2 x + 1 = 2h ) / h = 2

I hope it is useful,

Minoo