Marco planted a tree that was 54 inches tall several years ago. The tree has grown at a rate of approximately 1.5 inches per year. Marco uses this equation to calculate the tree’s height h.

Question

1.5x+54=h

What does the x
represent in this equation?

A.

The x
represents the tree’s growth each year.

B.

The x
represents the height of the tree today.

C.

The x
represents the number of years since the tree was planted.

D
.

The x
represents the starting height of the tree.

Answer 1

In the equation \(1.5x + 54 = h\), the variable \(x\) represents the number of years since Marco planted the tree. Therefore, the correct answer is:

C. The x represents the number of years since the tree was planted.