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If A = (4, -5) and B = (7, -9), what is the length of AB ? A. 6 units B. 5 units C. 8 units D. 7 units
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If A = (4, -5) and B = (7, -9), what is the length of AB ? A. 6 units B. 5 units C. 8 units D. 7 units

User Ivar Eriksson
by
8.2k points

2 Answers

5 votes

Answer:

D

Explanation:

User Simpson
by
8.6k points
5 votes

Answer:

5 (Answer B)

Explanation:

As we move from A to B, x increases by 3 and y decreases by 4. Apply the Pythagorean Theorem:

(length of AB) = √(3² + [-4]²) = 5 (Answer B)

User Taariq
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7.8k points
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