Question

determine whether the graph of the given equations are parallel, perpendicular, or neither.y=2x+15y= -2x+3

Answer 1

1. When two lines have the same slope they are parallel.

2 . When the quotient of two lines is -1 they are perpendicular.

The slope of

y = 2x + 15 is 2

the slope of

y = -2x + 3 is -2

since -2/2 = -1 they are perpendicular :)