Write an equation so that y depends on x. Find the amount of tax, y, for an 8.7% sales tax on a purchase x.
A) y = 0.087x
B) y = 0.87x
C) x = 0.87y
D) x = 8.7y
E) y = 8.7x

Question

Quizplus · Accepted Answer

The equation y = 0.087x represents the amount of tax, y, for an 8.7% sales tax on a purchase x. This is because the tax is calculated by taking 8.7% of the purchase price, which can be represented as 0.087 times the purchase price. Therefore, y depends on x, and the correct equation is A.

Write an Equation So That Y Depends on X