Question

The graph shows the height of a bird compared to ground level. What does the y-intercept represent?

The first quadrant of a coordinate plane. The horizontal axis is labeled time in seconds, and the vertical axis is labeled height in feet. A ray begins at the origin and passes through the point (2, 8).


The bird initially started at ground level.



The bird initially started 2 feet above ground level.



The bird ascends at a rate of 4 feet per second.



The bird ascends at a rate of 8 feet per second.

Answer 1

"The bird initially started at ground level."

The y-intercept is the height at time t = 0; here it is 0 feet, so the bird's initial height is ground level.