Find the x-intercepts of the parabola with vertex (-2,-8) and y-intercept (0,4). write your answer in this form: (x1,,yz). if necessary, round to the nearest hundredth.

Find the cosine function that is represented in the graph.

Look at triangle wxy what is the length (in centimeters) of the side wy of the triangle?

Which sum or difference identity would you use to verify that cos (180° - q) = -cos q? a.) sin (a -b) = sin a cos b – cos a sin b b.) cos (a -b) = cos a cos b – sin a sin b c.) cos (a -b) = cos a cosb + sin a sin b d.) sin (a + b) = sin a cos b + cos a sin b