What is the range of the function y = -x2 + 1?

y ≤ -1

y ≥ -1

y ≤ 1

y ≥ 1

Your answer is C;You have a parabola. The range is all of your y's, and if you graph the parabola, you will see that the parabola opens downwards (hence the negative in front of the x) and no points ever go above 1 on the y-axis. Therefore all your y's are equal to or lower than 1, making your answer C. Hope this helps!

Set square i think so