SOLUTION: A line through (3, -4) with a slope of -9 has a y-intercept at ??

Question 890424: A line through (3, -4) with a slope of -9 has a y-intercept at ??
Answer by lwsshak3(11628) (Show Source): You can put this solution on YOUR website!
A line through (3, -4) with a slope of -9 has a y-intercept at ??
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Standard form of equation for a line: y=mx+b, m=slope, b=y-intercept
Equation: y=-9x+b
solve for b using coordinates of given point (3,-4)
-4=-9*3+b
-4=-27+b
b=-23
Equation: y=-9x+23
y-intercept:(0, 23)
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