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Math help. I need fast help otherwise I don't pass please?
1. 4x - 2y = -12
2x + y = -2
Part 1: Solve the system by graphing. Draw the graphs on paper and indicate their intersection point. Type the ordered pair solution here as your answer to Part 1.
Part 2: Solve the system using the substitution method. Show all work here and indicate the solution for the system as an ordered pair.
Part 3: Solve the system using the addition method. Show all work here and indicate the solution for the system as an ordered pair.
1 Answer
- ?Lv 78 years agoFavorite Answer
1) I can't graph this for you. Ordered pair (-2, 2)
2)
4x - 2y = -12
2x + y = -2
4x - 2y = -12
y = -2x - 2
4x - 2( -2x - 2 ) = -12
4x + 4x + 4 = -12
8x + 4 = -12
8x = -16
x = -2
y = -2x - 2
y = -2( -2 ) - 2
y = 4 - 2
y = 2
Ordered Pair: ( -2 , 2 )
3) I've never heard of the addition method. I know matrices, substitution, elimination, never heard of addition nor could I find anything about it.
Next time ask for help before you nearly fail. I hope this helps. Have a great day.
