A quadratic equation is written in four equivalent forms below. I. y = x(x + 12) + 32
II. y = (x + 6)2 - 4
III. y = x2 + 12x + 32
IV. y = (x + 8)(x + 4)

Which expression can be used to determine the slope of the line that passes through the points -6, three and one, -9

The lengths of all sides of a triangle are integers when measured in decimeters. one of the sides has length of 1 dm and another of 3 dm. find the perimeter of the triangle.'

Angle xyz is formed by segments xy and yz on the coordinate grid below: a coordinate plane is shown. angle xyz has endpoints at 3 comma negative 1 and 6 negative 2 and 3 comma negative 3 and measures 36.87 degrees. angle xyz is rotated 270 degrees counterclockwise about the origin to form angle x′y′z′. which statement shows the measure of angle x′y′z′?