SOLUTION: A line with a y-intercept of -3 passes through the point (3, -2). It also passes through point (x, -9). What is the x coordinate for that point?

Question 936685: A line with a y-intercept of -3 passes through the point (3, -2). It also passes through point (x, -9). What is the x coordinate for that point?
Answer by TimothyLamb(4379) (Show Source): You can put this solution on YOUR website!
slope = m
m = dy/dx
m = (-3+2)/(0-3)
m = (-1)/(-3)
m = 1/3
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y + 2 = (1/3)(x - 3)
y = (1/3)x - 3
x = 3y + 9
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y = -9
x = 3*(-9) + 9
x = -18
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