SmartOwl94
Determine the standard form of the equation of the line that passes through (7, -1) and (3, 9).
a. 5x +2y= 33
b. 2x+5y = 33
c. 5x-2y=33
d. 5x+ 2y=-33
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hartnn
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can u find slope first ?
SmartOwl94
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umm hold on yeah
SmartOwl94
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-5/2=-2.5? That's what I got but I get stuck after getting the slope
hartnn
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the equation of line can be written as y-y1=m(x-x1)
since u have slope, u just need one point, (x1,y1)
u have 2 points, take any 1 of those as (x1,y1)
and substitute in y-y1=m(x-x1)
SmartOwl94
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So the answer is d?
hartnn
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did u guess that ?
SmartOwl94
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No that's the answer I got from the beginning but I was unsure....
hartnn
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yup, its D
SmartOwl94
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Well that's good to know that I got the right answer!!!!! Thanks!
hartnn
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welcome :)