Question

Write the equation of the line in Slope-Intercept form, Then graph the equation by using either the slope-intercept equation or by using x- and y-intercepts. The line contains points (3, 5) and (3, 8).

Answer 1

I have already did this problem, just need to make sure I have done it right. 0 is the slope obviously because the line is always on the x-axis.

Answer 2

Slope is undefined, which means its a vertical line. So the equation is gonna be x=whatever the x coordinate always is. In this case x=3

Answer 3

Ahh, okay. Thanks, that's all I needed.

Answer 4

You're welcome

Answer 5

I have one more problem like this. Can you help me through it?

Answer 6

Yep.

Answer 7

Alright, thanks. Here it is. The line contains points (2, -1) and (0, 4).

Answer 8

And you want slope intercept form?

Answer 9

Yes, same as the others.

Answer 10

Alright, well if you notice, one of your points is the y intercept. So if we find the slope we can just plug those in and were done.

Answer 11

Slope is -2

Answer 12

You should have got -5/2

Answer 13

Hmmm, trying again one min.

Answer 14

Ahh, okay. Gothcha.

Answer 15

Alright, slope intercept form is y=mx+b where m=slope and b=y coordinate of the y intercept. So plug those in and what do you get?

Answer 16

2 = -5/2-1 + 2 or something like that....

Answer 17

No, all you have to plug in is m and b.

y=-5/2x+4

Answer 18

Oh...yeah. heh I'm always gettin the steps mixed up.

Answer 19

Yep. So now you're done and thats your answer. Understand how to do it now?

Answer 20

Well yes and no. I'll most likely forget anyway.