Question

Choose the equation of the line passing through the point (1, -5) and perpendicular to y = 1 fifthx - 10.

y = 5x + 10

y = 5x

y = -5x - 10

y = -5x

Answer 1

the product of slopes of perpendicular lines =-1

y=(1/5)x-10
so the slope of perpendicular line : -5
y-y1=m(x-x1)
y+5=-5(x-1)
y+5=-5x+5
y=-5x+5-5
y=-5x