Aquintic polynomial has, at most, how many turning points? 3 4 5 6

4

Step-by-step explanation:

The derivative of a 5th-degree polynomial is a 4th-degree polynomial, so will have at most 4 real zeros. The zeros of the derivative correspond to the turning points of the function.

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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