Question 45 Answer and Explanation _ACT April 2006 Form 63E Math Section

Question 45 Answer and Explanation _ACT April 2006 Form 63E Math Section

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45. What is the distance, in coordinate units, between the points P(-2,-1) and Q( 1, 3) in the standard (x, y) coordinate plane?

A. $\sqrt{5}$

B. $\sqrt{7}$

C. 3

D. 5

E. 7

Answer and Explanation

Your Answer is

Correct Answer is D

Explanation

PQ² = (3-(-1))² + (1-(-2)²) = 25

PQ = 5