Question 31 Answer and Explanation _ACT December 2017 Form A10 Math Section

Question 31 Answer and Explanation _ACT December 2017 Form A10 Math Section

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31. Given $f\left({x}\right)=\frac{2}{x+1}$ , what is(are) the real value(s) of $t$ for which $f\left({t}\right)=t$ ?

A. -1 only

B. 2 only

C. -2 and 1 only

D. -1 and 2 only

E. 1 and 2 only

Answer and Explanation

Your Answer is

Correct Answer is C

Explanation