SOLUTION: Graph y=3/2 + 1       Find slope & y-intercept of each line 12x-6y=9     Solve using substitution method 2x+y=6 x-y=3

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Question 322393: Graph y=3/2 + 1
 
 
 
Find slope & y-intercept of each line
12x-6y=9
 
 
Solve using substitution method
2x+y=6
x-y=3
Answer by QH(50) About Me  (Show Source):
You can put this solution on YOUR website!
1. Graph y=3/2 + 1
I'm assuming that this is y=%283%2F2%29x%2B1%7D%7D%0D%0AY+int=+1%0D%0ASlope=%7B%7B%7B3%2F2
+graph%28+300%2C+200%2C+-5%2C+5%2C+-5%2C+5%2C+y=%283%2F2%29x%2B1%29
2. Find slope & y-intercept of each line
12x-6y=9
First put into y=mx+b format
-6y=-12x%2B9
%28-6y%29%2F-6=%28-12%2F-6%29x%2B9%2F-6
y=2x-3%2F2
Slope= 2%2F1
Y int= -3%2F2
3. Solve using substitution method
2x+y=6
x-y=3
Solve for x in 2nd equation
x=3%2By
Substitute (3+y) for X in 1st equation
2%283%2By%29%2By=6
6%2B2y%2By=6
6%2B3y=6
3y=12
y=4
Substitute 4 for Y in 2nd equation
x-%284%29=3
x=7
(7,4)