SOLUTION: Solve the following systems of equations and state if any lines are parallel: 9x - 8 = y
8x - 4 = y
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Question 463640: Solve the following systems of equations and state if any lines are parallel: 9x - 8 = y
8x - 4 = y
Found 2 solutions by aliateach, Alan3354:
Answer by aliateach(10) (Show Source): You can put this solution on YOUR website!
9x - 8 = y
8x - 4 = y
minus eq1 from eq2
x -4 = o
x = 4
substitute in eq1
(9)(4) - 8 = y
36 - 8 = y
28 = y
check your answer
8x - y = 4 from eq2
8*4 - 28 =?
32 - 28 = 4
write the two equations in standard from y = mx + b
y = 9x -8 slope =9
y = 8x - 4 slope = 8
since they are not equal they are not parrell
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
9x - 8 = y
8x - 4 = y
----------
Since they both = y,
9x - 8 = 8x - 4
x = 4
---------
y = 28
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