Question

Write an equation in slope-intercept form for the line that passes through the given point and is perpendicular to the graph of the equation. (-5,2),y=1/2x-3

Answer 1

http://openstudy.com/study#/updates/52697f82e4b040e33d2f88e7

Answer 2

this is an example of a similar to this problem, if you dont get the example I can work it through with you!

Answer 3

@Dancer0424, lets work this one together in here.

Answer 4

Am I reading the question correctly,
the equation is y = 1/2x - 3
and the perpendicular line passes through the point (-5,2)
find the equation of that perpendicular line.

right?

Answer 5

yes

Answer 6

Ok, so lets get the perpendicular slope first. Do you know how to get a slope of a perpendicular line?

Answer 7

Not really

Answer 8

OK, so for a slope perpendicular.

Lets say you have slope=a
perpendicular slope would be -1/a
(in other words multiplicative inverse of a, and then times -1.)
what would be a slope of perpendicular line to the one that has a slope of 1/2 ?

Answer 9

-2/1

Answer 10

yep!

Answer 11

-2/1 is the exact same thing as -2 right?
so what we know so far is that it is y=-2x+b



so the b would be the y coordinate on the perpendicular line that corrresponds to the
0 x-axis.

let me graph it again......