Identify an equation in point-slope form for the line parallel to y - x - 4 that passes through (-1,7).
A. Y-7 -(x+1)
B. y+1---7)
C. y-7 - (x+1)
D. Y+7 - - 1

On a string instrument, the length of a string varies inversely as the frequency of its vibrations. an 11-inch string has a frequency of 400 cylces per second. find the frequency of a 10-icnch string.

Prove that the value of the expression 7^8–7^7+7^6 is divisible by 43.

Tomas used 3 1/3 cups of flour and now has 1 2/3cups left. which equation can he use to find f, the number of cups of flour he had to begin with? f+3 1/3=1 2/3 f-3 1/3=1 2/3 3 1/3f=1 2/3 f/3 1/3=1 2/3