At the West Texas Balloon Festival, another hot air balloon is sighted at an altitude of 800 ft. but is descending at a steady rate of 30 feet per minute. What does the y-intercept represent?

can you rephrase the question ? it is unclear : -)

step-by-step explanation:

look at the picture.

y-intercept for the function on a picture is 4 → point (0, 4).

y-intercept for the function

is for x = 0. substitute:

y-intercept is 8 → point (0, 8).

the answer is 1030 it's very simple math.