SOLUTION: what is the equation for a line that passes through the following points, (6,-12) and (15,-3)

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Question 1063598: what is the equation for a line that passes through the following points, (6,-12) and (15,-3)
Found 3 solutions by Boreal, josgarithmetic, MathTherapy:
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
slope is -3-(-12)/(15-6)=9/9=1
point slope formula y-y1=m(x-x1), where m is the slope and (x1,y1) the coordinates
y-(-3)=1(x-15)
y+3=x-15
y=x-18
graph%28300%2C300%2C-20%2C20%2C-20%2C20%2Cx-18%29

Answer by josgarithmetic(39620) About Me  (Show Source):
You can put this solution on YOUR website!
slope is %28-12-%28-3%29%29%2F%286-15%29=-9%2F%28-9%29=1.

Choosing point (6,-12) and using point-slope equation form,
y-%28-12%29=1%2A%28x-6%29

y%2B12=x-6

highlight%28y=x-18%29-------------in slope-intercept form.

Answer by MathTherapy(10552) About Me  (Show Source):
You can put this solution on YOUR website!
what is the equation for a line that passes through the following points, (6,-12) and (15,-3)
 

Use one of the following POINT-SLOPE equation formulas to get the equation:

y+-+y%5B1%5D+=+%28%28y%5B1%5D+-+y%5B2%5D%29%2F%28x%5B1%5D+-+x%5B2%5D%29%29%28x+-+x%5B1%5D%29    OR    y+-+y%5B2%5D+=+%28%28y%5B1%5D+-+y%5B2%5D%29%2F%28x%5B1%5D+-+x%5B2%5D%29%29%28x+-+x%5B2%5D%29   OR     y+-+y%5B1%5D+=+%28%28y%5B2%5D+-+y%5B1%5D%29%2F%28x%5B2%5D+-+x%5B1%5D%29%29%28x+-+x%5B1%5D%29     OR     y+-+y%5B2%5D+=+%28%28y%5B2%5D+-+y%5B1%5D%29%2F%28x%5B2%5D+-+x%5B1%5D%29%29%28x+-+x%5B2%5D%29

I've done the hard work in explaining how to arrive at the answer. You now need to do some work too in getting that answer.