Question

Y=2x-1 find the slope of a line perpendicular to each given line

Answer 1

Plus you are posting the questions so fast that you can't possibly be reading and understanding any of the answers that you are getting.

Answer 2

omg!im not gonna get these brief explanations anyway

Answer 3

Well if you would follow up with some kind of response rather than just posting more problems you might get a longer explanation. What is confusing to you about the problems you posted?

Answer 4

everything.

Answer 5

From the equation you posted, can you identify the slope of the line?

Answer 6

no

Answer 7

If you have x = 1, what is y?

Answer 8

the general form of a line is y=mx + b
where m is the slope, and b is a constant

Answer 9

This might help:
http://tutorial.math.lamar.edu/Classes/Alg/Lines.aspx

Answer 10

ok i knw the y=mx+b thing.but is it 0?

Answer 11

If x = 1 then y is 0 yes. Now if x increases by 1 more (goes to 2) then how much does y increase by?

Answer 12

no, the line is Y=2x-1
y=mx+b
so the m is 2, and the b is -1

Answer 13

oooo!ok thats simple

Answer 14

Err wait, sorry. No if x = 1 y = 1.

Answer 15

The slope of the line is "How much does y increase (or decrease) as x increases

Answer 16

wait now imm confused again.m=2?

Answer 17

So if x goes up by 1, y will go up by 2 more.

Answer 18

actually you have another way to find the slope.
first you need to find two point that's passed by the line.
just plug x=0 -> y=2(0)-1 -> y=-1
then plug y=o -> 0=2x-1 -> x=1/2
now you have two points (0,-1), this is the (x1,y1).
and (1/2 ,0), the (x2,y2)
the formula to find slope is :
m= (y2-y1)/(x2-x1)
then just plug the point, you'll get m

Answer 19

If x = 1, y = 2(1) -1 = 2-1 = 1.
If x = 2, y = 2(2) - 1 = 4-1 = 3.
If x = 3, y = 2(3) -1 = 6 -1 = 5.

So we can see that when x increases by 1, y increases by 2. So the slope of the line is 2.

Answer 20

Once you have determined the slope of the line, you can find a perpendicular line by inverting it (divide 1 by it) and make it the opposite sign.

Answer 21

Did you finish this one? or the other 6 you posted?