Question

P(-2,-1) m=2
write an equation of the line perpendicular to
y=2x+3
passing through the origin

Answer 1

What is the given point P(-2,-1) .? Is that given in th problem?

Answer 2

yes that given point is p(-2,-1)

Answer 3

You are asked to write equation perpendicular to y=2x+3 passing thru origin, right?

Answer 4

In y = mx+b, b is the y-intercept. So since it will pass thru the origin b=0

Answer 5

When 2 lines are perpendicular, their slopes. Are negative reciprocals. Since slope of the given line is 2, what is the negative reciprocal of 2?

Answer 6

1/2 right

Answer 7

-1/2

Answer 8

You can now write the equation

Answer 9

m = -1/2 and b =0

Answer 10

so :
y=-1/2 x

Answer 11

Yes!

Answer 12

thank you!(: