# Chapter 10 - Section 10.1 - Distance and Midpoint Formulas; Circles - Exercise Set - Page 766: 71

See below.

#### Work Step by Step

The distance formula from $P_1(x_1,y_1)$ to $P_2(x_2,y_2)$ is $d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$.

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