Answer this i’m elimination using addition and subtraction form

(0,-4)

Step-by-step explanation:

x-y = 4

2x+y = -4

Add these together to eliminate y

x-y = 4

2x+y = -4

3x = 0

Divide by 3

3x/3 = 0/3

x = 0

Now we need to find t

2x+y = -4

0+y = -4

y= -4

a function could be identified in 3 ways either on a chart,graph, or ordered pairs. first a function is that each point has its own. the rule is that there can be many x's to one y but there can not be 2 x's at different y's. so on a graph when you put a straight line through the y's there should be one dot only to be a function.

step-by-step explanation:

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