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Find the equation of a line passing through ( -1/2,1/2) with a slope of 5.
a. y = 5x - 2
b. y = 5x - 3
c. y = 5x + 3
First check the gradient - the number before the x which is 5 of course. Then use the formula... y - b = m(x - a) using the gradient m = (5) and the coordinate you have which is (-1/2,1/2) ( a b)
So... y- b = m (x - a) y - 1/2 = 5 ( x - (-) 1/2) y - 1/2 = 5 ( x + 1/2) y - 1/2 = 5x + 2.5 y = 5x + 3 (C)
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