# Find-M-so-that-the-lines-with-equations-2x-My-5-and-4y-x-9-are-perpendicular-Explain-how-you-got-your-answer-

Find M so that the lines with equations -2x + My = 5 and 4y + x = -9 are perpendicular. Explain how you got your answer.

Find M so that the lines with equations -2x + My = 5 and 4y + x = -9 are perpendicular. Explain how you got your answer.