Which graph is a function of x? explanation, ?

The graph in the shape of a V (absolute value function)

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V looking graph

(absolute value function)

Step-by-step explanation:

We are looking for a relation that passes the vertical line test.

Basically if you can play a vertical line on your graph and it touches more than once on that vertical line (your graph) then it isn't a function.

The only one that is a function here is the V looking graph.

x=-7

step-by-step explanation:

x+3=-10

-10+3=-7

x=-7