Question

The formula h -15 = 3.2t gives the height h in inches of a plant t weeks after planting.

How high was the initial height of the shrub?

Answer 1

Substitute t = 0, to get the initial height

Answer 2

15 Inch

Explanation:

The formula is

`h-15=3.2t\\`

To find initial height, put t = 0.

`h-15=3.2* 0\\h-15=0\\h=0+15 \\h=15`

Hence, initial height of the plant = 15 inch