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 = 4 + 2x

What does the y-intercept of this function represent?

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.

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 = 4 + 2x

What does the y-intercept of this function represent?

 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.

anonymous · Answer

@Data_LG2

anonymous · Answer

which one do you think?

hint: y-intercept is considered as a "constant"

anonymous · Answer

I Think its C @Data_LG2

anonymous · Answer

why C? the statement C is right BUT the question is asking for the role of y-intercept in the problem. Choice C determines the role of the slope. So try another one :)