Question 191071: Hi I need help with these 2 problems please not sure if I have them in the right catagory
1).Given the following equation, 4x – 2y = 12; solve for y.
2).Verify that the ordered pair (3, -3) is a solution to the equation
3x + 4y = -3
Found 2 solutions by Alan3354, jojo14344:
Answer by Alan3354(69443)   (Show Source):
You can put this solution on YOUR website! 1).Given the following equation, 4x – 2y = 12; solve for y.
4x – 2y = 12
2x - y = 6
-y = 6-2x
y = 2x - 6
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2).Verify that the ordered pair (3, -3) is a solution to the equation
3x + 4y = -3
Sub 3 for x and -3 for y.
3*3 + 4*(-3) =? -3
9 - 12 = -3
So it is a solution.
Answer by jojo14344(1513)  (Show Source):
You can put this solution on YOUR website!
1) 4x – 2y = 12 -----> to Slope-Intercept Form ,
Move "y" to the right and the constant 12 to the left: (change signs)
 ---> 
 , reduceed to:
* Above Eqn has y-Interecept of (0,-6) and slope of 2.
2) Verify that the ordered pair (3, -3) is a solution to the equation
3x + 4y = -3
Let fy=0:
 ----> 
 , X-Intercept
Let fx=o:
 ----> 
 , Y-Intercept
Via Slope-Intercept Form,
 ----> 
We see the graph:
 ---->
*The Line passing thru point (3,-3)
Subst. to the Eqn:
 , Point (3,-3) is a solution
Thank you,
Jojo
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