Step-by-step explanation:
To determine the scale factor consider the ratio of the image coordinates to the original coordinates, that is
scale factor = = =
20
step-by-step explanation:
x² + 3x + 7 = 0 [ax² + bx + c]
a = 1
b = 3
c = 7
quadratic formula:
(+/- is this ±)
plug in the numbers into the variables
your answer is a