Question

The function below models the correlation between the number of hours a plant is kept in sunlight X in the height Y, in mmxxxx to which it grows. y = 2 + 4x what does the y-intercept of this function represent?

A.) The original height of the plant
was 4 mm.

B.) the original height of the plant was 2 mm.

C.) the height of the plant increases by 2 mm for every hour of sunlight it receives

D.) the height of the plant increases by 4 mm for every hour of sunlight it receives.

Answer 1

Bthe original height of the plans was 2 mm. Because the y int us the until value . B is the answer

Answer 2

Answer: B.) the original height of the plant was 2 mm.

Explanation:

The given function below models the correlation between the number of hours a plant is kept in sunlight 'x' in the height 'y', in mm to which it grows.

`y=2+4x`

To find the y intercept of the function, we substitute the value of x =0 , we get

`y=2`

Hence, the original height of the plant = 2 mm

Therefore, the y intercept of the function is (0,2)

i.e. the original height of the plant = 2mm.