Write the Quadra equation in VERTEX FORM whose graph has the given vertex(-1,-3) and passes through the given point(2,15)

One line passes through (-7,-4) and (5,4) . another line passes through the point (-4,6) and (6,-9)

A50% increase followed by 33 1/2% decrease

Determine the common ratio and find the next three terms of the geometric sequence. 10, 2, 0.4, a. 0.2; -0.4, -2, -10 c. 0.02; 0.08, 0.016, 0.0032 b. 0.02; -0.4, -2, -10 d. 0.2; 0.08, 0.016, 0.0032 select the best answer from the choices provided a b c d