Which of the trigonometric expressions represent an inverse function?

With this one. will mark brainliest

Ialready asked this but i never got an answer. will give a high rating and perhaps brainliest. choose the linear inequality that describes the graph. the gray area represents the shaded region. y ≤ –4x – 2 y > –4x – 2 y ≥ –4x – 2 y < 4x – 2

Solve each quadratic equation by factoring and using the zero product property. x^2 - 8x + 30 = 3x