What is the quadratic regression equation for the
data set?
Variable x 7 3 10 2 5 12 9
Variable y 10 11 5 9 12 3 7
y = -0.155x² + 1.391x + 7.739
y = 7.739x² + 1.391x - 0.155
y=-0.735x + 13.179
y=-0.735x² + 13.179x + 0.689