SOLUTION: write an equation in slope-intercept form of a line containing the points (10,-12) and (13,18)

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Question 191439: write an equation in slope-intercept form of a line containing the points (10,-12) and (13,18)
Answer by RAY100(1637) About Me  (Show Source):
You can put this solution on YOUR website!
m=(y2-y1) / (x2-x1) = (18-(-12)) / (13-10) = 30/3 = 10
y=mx +b = 10 *x +b
subst ( 13 , 18)
( 18) = 10 * (13) +b = 130 +b
b = (-112)
y = m*x +b
y = 10*x - 112
check -12 = 10 * 10 -112 = -12 ok
check 18 = 10 * 13 -112 = 18 ok