SOLUTION: What is the linear equation that has the following solutions? x= -9 y= 1856 x= -6 y= 1226

Question 983218: What is the linear equation that has the following solutions?
x= -9 y= 1856
x= -6 y= 1226
Answer by macston(5194) (Show Source): You can put this solution on YOUR website!
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Given two points: (-9,1856) and (-6,1226)
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Find the slope (m)=Change in y/change in x
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m=(1856-1226)/-9-(-6)=630/-3=-210
The slope is -210. Use this for m in slope intercept form:
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y=mx+b
y=-210x+b Put in values from one point and solve for b.
1856=-210(-9)+b
1856=1890+b
-34=b
The y intercept (b)=-34 Use this as b in slope-intercept form:
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y=-210x-34 ANSWER: This is your equation. Use second point to check:
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CHECK:
Using (-6,1226):
1226=-210(-6)-34
1226=1260-34
1226=1226

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