Find the value of x that makes m || n

Write numerical coefficient of y² in the expression 2x² - 15xy – 7y²

Lindsay used two points, (x,y; ) and (+2.82), to find the equation of the line, y = mx + b, that passes through the points. y2-y, first, she used the definition of slope and determined that the value of mis x, - . given this information, which expression must represent the value of b?

How can you construct perpendicular lines and prove theorems about perpendicular lines