For this question, consider the function f (x ) = -2x 2 + 8x + 3.
what is the maximum value of the function?

f' = -4x+8=0 => x=2

=> f(2) is the maximum = 11

answer: -0.5 would be the most likley outcome

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