1.What would be the points of AA'B'C' after AABC was reflected across the y-axis? A (-4,1) B (4,3) C (0,-1) 2. What would be the points if the triangle was dilated by a scale factor of 2?

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