Question

What is the range of the function y = -x^2 + 1?


A.) y ≤ -1

B.) y ≥ -1

C.) y ≤ 1

D.) y ≥ 1

Answer 1

c

Answer 2

this is a parabola, or quadractic, the coefficient of x^2 is -1, so it opens downward, so the largest value of y is when -x^2 = 0, this makes f(x)=1, so the range is y≤1