Question

f(x) = -2sin(x-pi/2) what are two x intercepts

Answer 1

sine is zero if the input is zero, so you can start by solving
\[x-\frac{\pi}{2}=0\] and solve for \(x\) in one step

Answer 2

sine is also zero if \(x=\pi\) so you can then solve
\[x-\frac{\pi}{2}=\pi\] again in one step

Answer 3

0 and pi/2

Answer 4

yes