Question

Given the quadratic equation below, determine which situation it could represent.

Answer 1

Answer: option C. A garage door is 6 feet wider than it is tall. The area of one side of the garage door is 146 square feet.

Justification:

Call x the height of the garage door.

Then, the width is x + 6

And the area of one side is height * width = x (x + 6) = x^2 + 6x

That is equal to 146 feet^2

=> x^2 + 6x = 146