Question

The function below models the correlation between the number of hours a plant is kept in sunlight (x) and the height (y), in mm, to which it grows: y = 2 + 4x What does the y-intercept of this function represent? (1 point) The original height of the plant was 4 mm. The original height of the plant was 2 mm. The height of the plant increases by 2 mm for every hour of sunlight it receives. The height of the plant increases by 4 mm for every hour of sunlight it receives.

Answer 1

The original height of the plant was 2 mm

Explanation:

Given

`y = 2 + 4x`

Required

Interpret the y-intercept

The y-intercept is when
`x = 0`

So, we have:

`y = 2 + 4 *0`

`y = 2 + 0`

`y = 2`

This implies that the original or initial height was 2 mm