Question 8 Answer and Explanation _ACT April 2013 Form 71G Math Section

Question 8 Answer and Explanation _ACT April 2013 Form 71G Math Section

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8. A new operation,◆, is defined on pairs of ordered pairs of integers as follows: (a, b)◆(c, d)= $\frac{ac+bd}{ab-cd}$ . What is the value of (3, 1) ◆ (4, 5) ?

F. $-\frac{17}{11}$

G. -1

H. $\frac{17}{11}$

J. $\frac{17}{7}$

K. 17

Answer and Explanation

Your Answer is

Correct Answer is G

Explanation