Question

Calculate the equation of the line between the points (-6,-1) and (2,-1)

Answer 1

ideas?
what is the slope?

Answer 2

I got 0/8 for the slope. i did y2-y1 and x2-x1

Answer 3

Yes!

Answer 4

slope is 0.
But the other question is, where does it hit the y-axis?

Answer 5

what do i do after that??

Answer 6

Let's do this, one equation for a line is
y = mx + b
Do you know that one?

Answer 7

I thought I use y-y=m(x-x)

Answer 8

OK. We just found m. Remember what it is?

Answer 9

ya But the slope 0/8 confuses me

Answer 10

0/8 is just 0 forget about the 8

Answer 11

ok so y= mx+b is the equation?

Answer 12

We can stick with yours. Since m = 0,the right hand side is 0

Answer 13

Now we have that y - y0 = 0
And we know one y that is on the line, that is, one y0...

Answer 14

would the x= -1 for the answer?

Answer 15

Almost, we had
y - y0 = 0
Now we have y0 = -1
y = ?

Answer 16

y=-1

Answer 17

Yes!

Answer 18

And it makes sense, sketch the points and you'll see.

Answer 19

hahah thanks alot!! :)

Answer 20

yw