Mathematics, 24.05.2021 14:00, 20Tiglashou

The petrol consumption of a car (y miles per gallon) depends on the speed the car is travelling at (x mph), according to the formula y= 200-1.5x - 4500/x

a.) draw the graph of this equation for 40 <= x <= 80, taking a scale of 2 cm to 5 units on each axis.
b.) what is the petrol consumption at 75 mph
c.) use your graph to estimate the most economical speed at which to drive this car.

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The petrol consumption of a car (y miles per gallon) depends on the speed the car is travelling at (...