1) Parallel, Perpendicular, or Neither?
y = -8x + 1
y = 8x + 1

Given the points a(-2, 1) and b(8, 6), find the coordinates of the point c on directed line segment ab, that partitions ab in the ration 2: 3.

Sam opened a money-market account that pays 3% simple interest. he started the account with $7,000 and made no further deposits. when he closed the account, he had earned $420 in interest. how long did he keep his account open?

Find the axis of symmerty for x y=x squared -4x-8