What is the y-intercept of the function f(x) = -2/9x+1/3

For what values of x is x2 + 2x = 24 true?

Which of the expressions (on the photo document i inserted) together represent all solutions to the following equation? 8cos(12x)+4=-4 *the answer should be in degrees.* > i would like for someone to explain the process to find the solutions for this.

What is the measure of angle x? a.101 b.158 c.44 d.79