F(x)=x 3−9xf, left parenthesis, x, right parenthesis, equals, x, cubed, minus, 9, x What is the average rate of change of f over the interval [2,6] open bracket, 12, comma, 6, close bracket?

Step-by-step explanation:

Given

Required

Determine the average rate of change

Average rate is calculated as thus;

In this case; b = 12 and a = 6

Calculating f(12)

Calculating f(6)

Substitute 12 for b and 6 for a in

Substitute values for f(6) and f(12)

what does x eaqual

step-by-step explanation:

let y equal to

the total fare and x is the mile of taxi ride. so the equation is

y = 0.55x + 1.75

since susie has

$10 to spend for a taxi cab, so he can have

10 = 0.55x +

1.75

x = 15 miles of

taxi ride

so the system of

inequality is

10 < 0.55x +

1.75

x > 2