Alisha slides down a 84-foot slide at a rate of 7 feet per second. If x represents the time from when she starts the slide, and y represents how far she is from the bottom in feet, what does the x-intercept represent?
A.
There is not enough information.
B.
The amount of seconds it takes Alisha to reach the end of the slide.
C.
The length of the slide.
D.
The distance Alisha has traveled when she is halfway down.

Question

Alisha slides down a 84-foot slide at a rate of 7 feet per second. If x represents the time from when she starts the slide, and y represents how far she is from the bottom in feet, what does the x-intercept represent?
 A. 
There is not enough information.
 B. 
The amount of seconds it takes Alisha to reach the end of the slide.
 C. 
The length of the slide.
 D. 
The distance Alisha has traveled when she is halfway down.