Explanation:
Given points
( 0 , -2) and ( 4 ,10)
Slope(m) = (y2 - y1) / (x2 - x1)
= ( 10 + 2) / ( 4-0)
= 12 / 4
= 3
Now the equation of line is
y - y1 = m (x - x1)
y + 2 = 3 ( x - 0)
y + 2 = 3x
3x - y = 2
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