Best explained and correct answer gets ! which choice is the equation of a line that passes through the point (5, -1) and is perpendicular to the line represented by this equation? y = -x + 5 a) y = x - 6 b) 5x - 5 = y c) y = -x - 1 d) 2x - 5y = -1

If the graphs of the linear equations in a system are parallel, what does that mean about the possible solution(s) of the system? a. there are infinitely many solutions. b. there is no solution. c. there is exactly one solution. d. the lines in a system cannot be parallel.

Solve the system by the elimination method. x + y - 6 = 0 x - y - 8 = 0 when you eliminate y , what is the resulting equation? 2x = -14 2x = 14 -2x = 14

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