Grace R.

asked • 01/21/14

Equation of the line. Slope-intercept

find the equation of the line containing the given points (1,3) and (-3,-7). Express your answer in slope-intercept form.

Grace R.

How do you know which one is Y2? or Y1?
 
Should it look something like this:
 
-7-3
_____
-3-1
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01/21/14

Grace R.

Thank you both for your responses; however, this is a lot to remember. Is there an easier way? I am really horrible with math, always have been since 3rd grade when calculators were introduced (I stopped using my brain at that point), please help me find an easier solution.
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01/21/14

Hafid M.

Hi Grace,
 
Unfortunately, too many students are in your situation.  Math really should be enjoyable.  Have you seen videos on Khan Academy?  I hope this helps you (you can copy and paste this address to your browser address bar):
https://www.khanacademy.org/math/algebra/linear-equations-and-inequalitie/equation-of-a-line/v/equation-of-a-line-3
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01/21/14

Vivian L.

There is no rule as to which one is y1 or y2.  Your equation for slope is correct.  It will produce the result of -10/-4 which is 10/4 which is 2.5.  This is the same result we reached.
 
I know it seems difficult.  But you will conquer it with enough practice.
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01/21/14

Grace R.

Thanks again for replying. I really appreciate the help :) I will check out the videos. 
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01/21/14

2 Answers By Expert Tutors

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Vivian L. answered • 01/21/14

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Microsoft Word/Excel/Outlook, essay composition, math; I LOVE TO TEACH

Hafid M. answered • 01/21/14

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Experienced Science and Math Tutor

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