Question

Help please!


What is the equation of the line described below written in slope-intercept form?
The line passing through point (4, -1) and perpendicular to the line whose equation is 2x - y - 7 = 0

a) y = -x + 1
b) y = x - 1
c) y = 2x + 1

Answer 1

here maybe this will help..
http://www.algebra.com/algebra/homework/Linear-equations/Linear-equations.faq.question.822233.html

Answer 2

kinda..? confused me a bit..

Answer 3

Okay so what you need to do first is to solve for y.
To do this you must isolate the variable by adding 7 and subtracting 2x from both sides.
You will end up with -y=-2x+7
Multiply both sides by -1 to isolate y
y=2x-7
In order to have an equation be perpendicular to another you need to have the negative inverse of the other slope.
y=-1/2x +1

I assume you forgot to paste 'd' because there is not the correct answer here.

Answer 4

there is no "d" just a, b, and c

Answer 5

The question is messed up. You can see yourself by plugging in '4' for every x and seeing that none of them equal -1.

Answer 6

Dd you mistype a?

Answer 7

I didnt mistype anything, I copied and pasted it

Answer 8

that's something you don't want to say... is this a quiz?

Answer 9

No, its an assignment. it doesn't matter if i copied and pasted it, I'm home-schooled