Question

Bret threw a baseball up in the air. The following table represents the height f(t), in meters, of the ball above the ground at time t seconds:
Time (t)
(in seconds) Height f(t)
(in meters)
0 3
2 4
4 3
6 0


Which of the following is represented by the y-intercept of f(t)?
(A)The ball touches the ground after 6 seconds.
(B)The ball was thrown from a height of 3 meters.
(C)The ball reaches a maximum height of 4 meters.
(D)The ball reaches the maximum height in 2 seconds.

Answer 1

Y-intercept is the value of f(t) when t = 0. From the table, when t = 0, f(t) i.e. height = 3.
Therefore, the second option is the correct answer.

Answer 2

The answer is B. The y-intercept is the number on the y axis when x=0. you can see that when x=0, y=3, therefore B is the answer