Arailroad track rises 30feet for every 400 feet of track. what is the measure of the angle of elevation of the track?

Step-by-step explanation:

It is given that a railroad track rises 30 feet for every 400 feet of track.

Thus, from the figure, we have

AB=30 feet and BC=400 feet

Therefore, using the trigonometry, we have

Thus, the measure of the angle of elevation of the track is .

yes because there is exactly one y value for every x value

for function there can't be more than one value for every x value

ummm seems that u didnt post the attachement !