Question: Consider the functionf:QQgiven byf(x) =x^2 +4.2 (a) Isfone-to-one?Justify your answer. (b) Isfonto?Justify your answer.

Consider the functionf:QQgiven byf(x) =x^2 +4.2

(a) Isfone-to-one?Justify your answer.

(b) Isfonto?Justify your answer.

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