Please help thank you

Step-by-step explanation:

Y = 3x + 2

Putting value of y in equation 2

x + 12 = 3x + 2

12 - 2 = 3x - x

10 = 2x

10/2 = x

5 = x

Putting value of x in equation 1

Y = x + 12

Y = 5 + 12

Y = 17

Option D is the correct answer

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sample answer: you can determine whether each element of the domain is paired with exactly one element of the range. for example, if given a graph, you could use the vertical line test; if a vertical line intersects the graph more than once, then the relation that the graph represents is not a function.