chelsiemartinezmaldo chelsiemartinezmaldo
  • 01-07-2019
  • Mathematics
contestada

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

Respuesta :

hihihi123 hihihi123
  • 01-07-2019

Answer:

D

Step-by-step explanation:

Answer Link
altavistard
altavistard altavistard
  • 01-07-2019

Answer:

5 (Answer B)

Step-by-step 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)

Answer Link

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