A teacher gave her class two functions, f(2) = |2 + 4 and g(z) = -2? + 6, and asked for the solution(s) of the equation f(2) = g(r). The answers given by four
students are shown below:
Linda: only 1
Paul: only 5
Ashley: 2 and 5
Mathew: -2 and 1
Who found the solution correctly and why?

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