Which equation describes a line perpendicular to y=8x-9 that passes through the point (9,-9)?
f. y=8x-81
g. y=-1/8x-63/8
h.8x-9
j. y=1/8x+585/8

Cherie measures and records the lengths and sizes of the same style of a sandal found at a shoe store. which equation can be used to determine the approximate shoe size, s, for a foot length of x inches? s = x – 2 s = 2x – 10 s = x + 6 s = 2x + 4

Determine whether the quadrilateral below is a parallelogram. justify/explain your answer (this means back it up! give specific information that supports your decision. writing just "yes" or "no" will result in no credit.)

Find the solution(s) to the system of equations. select all that apply y=x^2-1 y=2x-2