SOLUTION: Find a if the point (3,a) is on the line that passes through (-2,7) and (5,-3).

Question 1068373: Find a if the point (3,a) is on the line that passes through (-2,7) and (5,-3).
Found 2 solutions by Lightning_Fast, josgarithmetic:
Answer by Lightning_Fast(78) (Show Source): You can put this solution on YOUR website!
Use point slope form.
Find "m"
Using "m" find "b"
Boom, you have the equation of the line in slope intercept form.
Plug in 3 for x and solve for the y axis, or a.
Alternatively, you can skip to finding the point by using only the point intercept formula.
.
Answer by josgarithmetic(39630) (Show Source): You can put this solution on YOUR website!
Find the equation for the line.

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let x = 3 and find 'a'.

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