What is the slope of the line shown

Acable car begins its trip by moving up a hill. as it moves up, it gains elevation at a constant rate of 50 feet/minute until it reaches the peak at 2,000 feet. then, as the car moves down to the hill’s base, its elevation drops at the same rate.

For f(x)=2x+1 and g(x)= x^2 -7, find (f•g)(x)

Atriangle with all sides of equal length is a/an triangle. a. right b. scalene c. equilateral d. isosceles