Question

### Gauthmathier3017

Grade 10 · 2020-11-17

On the standard (x, y) coordinate plane, point A is located at (-2,3). Which of the following points is NOT exactly 4 units away from point A? （ ）

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Answer

5(793) votes

### Gauthmathier5835

Grade 10 · 2020-11-17

Answer

D

Explanation

A point 4 units away from the point (-2,3) must satisfy the equation

(x+2)^{2}+(y-3)^{2}=16. For(2,7), we have: (2+2)^{2}+(7-3)^{2}=16+16=32.

(x+2)^{2}+(y-3)^{2}=16. For(2,7), we have: (2+2)^{2}+(7-3)^{2}=16+16=32.

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