What is the next term in the pattern 1, -1, 2, -2,3

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.

What is the inverse of the function f(x) = 2x + 1?

Which of the following quartic functions has x = –1 and x = –2 as its only two real zeroes?