How does changing the coefficient 'a' affect the graph of y = ax?

It affects the slope of the graph. When an equation has a coefficient before 'x', the value of that coefficient will determine what the slope of the function looks like.

18.8 cubic inches.

step-by-step explanation:

volume of a cone = πr²h

r = 1.5 inches

h = 8 inches

pi = 3.14

volume of our cone = × 3.14 × 1.5² × 8 = 18.84 square inches

or equals to 18.8 square inches rounded up to nearest tenth.