Math
posted by Alison .
Which is an equation of the line that passed through ( 2,5 ) and ( 6,3 ).
A. Y= 1/2X  6
B. Y= 1/2X
C. Y= 2X + 12
D. Y= 2X  9

I really need help with this question so can anyone please explain to me how I can solve this question and please explain to me how you found the answer to this question step by step.

Look up the twopoint form of the equation for a line. It is based on the fact that the slope of a line is constant. The slope here is (3+5)/(62) = 2.
Now starting from the point (2,5), pick any other point (x,y) on the line.
The slope between those two points will always be the same: 2. So, for any point (x,y),
(y+5)/(x2) = 2
(y+5) = 2(x2)
y+5 = 2x4
y = 2x9
You could just as easily use the other point (6,3) as a starting place:
y3 = 2(x6)
y3 = 2x12
y = 2x9
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