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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.
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
Ahh, okay. Thanks, that's all I needed.
I have one more problem like this. Can you help me through it?
Alright, thanks. Here it is. The line contains points (2, -1) and (0, 4).
And you want slope intercept form?
Yes, same as the others.
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.
Slope is -2
You should have got -5/2
Hmmm, trying again one min.
Ahh, okay. Gothcha.
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?
2 = -5/2-1 + 2 or something like that....
No, all you have to plug in is m and b. y=-5/2x+4
Oh...yeah. heh I'm always gettin the steps mixed up.
Yep. So now you're done and thats your answer. Understand how to do it now?
Well yes and no. I'll most likely forget anyway.