Question 729317
y=-2x+7

a perpendicular line will have slope of 1/2

The equation will be y=(1/2) x +b

b can have any value . lets give it a value 7


{{{drawing(300,300,-10,10,-10,10,grid(1),graph(300,300,-10,10,-10,10,y=-2x+7,y=(1/2)x+7))}}}