Please help! I will give Brainliest!
Who is correct?

What is the slope of the line that contains the points (-2,1) and (0,-3)

[tex]5 \times1 \frac{12}{13} [/tex] me

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