SOLUTION: Solve the equation of a line in slope intercept form that has a slope of -5/9 and passes through the point (18,7) I am supposed to get this from point slope to slope intercept this

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Question 724246: Solve the equation of a line in slope intercept form that has a slope of -5/9 and passes through the point (18,7) I am supposed to get this from point slope to slope intercept this is what the equation looks like y-18=-5/9(x-7) PLEASE HELP!
Found 2 solutions by stanbon, josmiceli:
Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website!
Solve the equation of a line in slope intercept form that has a slope of -5/9 and passes through the point (18,7)
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I am supposed to get this from point slope to slope intercept this is what the equation looks like y-18=-5/9(x-7) PLEASE HELP!
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You are being asked to use the point-slope formula to find the equation.
slope = (change in y)/(change in x)
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(x,y) and (18,7) are two points on the line.
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(y-7)/(x-18) = -5/9
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y-7 = (-5/9}(x-18)
y-7 = (-5/9)x + 10
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Ans: y = (-5/9)x + 17
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An easier way to do these when you have a point and the slope is as follows:
Form: y = mx + b
Substitute for y,x, and m ; solve for "b":
7 = (-5/9)18 + b
7 = -10 + b
b = 17
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Equation:
y = (-5/9)x + 17
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Cheers,
Stan H.
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Answer by josmiceli(19441) (Show Source):
You can put this solution on YOUR website!
Let = slope
Say you are given the point ( x1 , y1 )
The general form for the point-slope formula is

You are given:
( x1 , y1 ) = ( 18,7 )

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Plugging in these numbers,

Multiply both sides by

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check:
Does it go through ( 18,7 ) ?

OK