Find the slope of a line through the points (-1,5) and (7,-11)

65 8 7 4 5 6 8 4 3 2 1 9 5 6 4 2 1 6 5 1 5 1 3 2 3 5 multiply the third number in the first row by the seventh number in the third row. add this result to the fifth number in the second row. add to this total ten times the fourth number in the third row. subtract the eighth number in the first row from the result.

How can you tell when x and y are not directly proportional?

Asystem of equations has 1 solution.if 4x-y=5 is one of the equations , which could be the other equation ?