Question

perpendicular to y=-2x +6 and containing the point (-2,4)

Answer 1

Do you know the slope of your original line?

Answer 2

No it part of my homework write equations for the following lines it says

Answer 3

I understand. But the answer is right there. I was just wondering if you knew how to identify it.

Answer 4

What how do you know I don't understand he told me to use this formula y=MX+b but I don't know how to set it up

Answer 5

OK. Yes. That's the slope-intercept form of a line.
y is your y coordinate
m is your slope
x is your x coordinate
b is the y intercept (where the line crosses the y axis)

So, now, looking at your original equation
y=-2x +6
can you identify the slope?

Answer 6

That's the problem I don't know I need an example then it will help

Answer 7

y = mx + b
m = slope
b= y intercept
y = -2x + 6
slope or m = -2/1
y intercept or b= 6

Answer 8

Perpendicular lines have inverse slopes.

Answer 9

The inverse of -2 /1 is 1/2

Answer 10

cush needs to understand slopes before understanding inverse slopes. Giving away the answers doesn't help.

Answer 11

Now to find the equation all you do is plug in those coordinates to find b
y = mx + b
4 = -2(1/2) + b
4 = -1 + b
5 = b
y = 1/2 x + 5

Answer 12

cush said he needs an example.. that is an example..

Answer 13

I've explained it.

Answer 14

No, you gave him the answer. *I* explained it.

Answer 15

Could you draw it because I don't get where you got the 1/2 and where the 4 or 5 came from

Answer 16

(-2,4)
(x,y)
y = m(x) + b
the slope of the original equation is -2/1
Perpendicular lines have inverse slopes ( the opposite ) , 1/2 in this case..
we have the slope and the (x,y) coordinates of the line but not the y-intercept at which you graph from.
so we plug the slope and (x,y) coordinates into y =mx + b
and solve for b.
4 = 1/2 (-2) + b
4 = -2/2 + b
4 = -1 + b
add 1 to both sides
5 = b

Answer 17

then input the values to get your equation..
y = 1/2 x + 5

Answer 18

Omg I think I get it thank you can you tell me how to do the same thing with the same numbers and everything but with parrell lines

Answer 19

Parallel lines have the same slope

Answer 20

Could you give me your equation and coordinates?

Answer 21

It has the same everything

Answer 22

y=-2x +6 and containing the point (-2,4)
parallel lines have the same slope
so all you have to do is solve for b again :P

Answer 23

I'll set the equation up for you
4 = -2(-2) + b

Answer 24

Y=2x+4 and containing point 4,0 perpendicular I got y=-1/4+4 check if did it right

Answer 25

4 = 4 + b
b = 0
so that equation's y intercept is 0
y = 2x

Answer 26

y= 2x + 4
y = 1/2 x + 4
is correct