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The coordinates of point R are (−3, 2), and the coordinates of point T are (4, 1). What is the length of RT?

1 Answer

2 votes

Answer:
d=√(50), 5√(2), \,\text{or about}\;7.1

Explanation:

We can use the distance formula to solve.


\displaystyle d=\sqrt{(x_(2)-x_(1))^2 +(y_(2)-y_(1))^2}


\displaystyle d=√((4--3)^2 +(1-2)^2)


\displaystyle d=√((4+3)^2 +(1-2)^2)


\displaystyle d=√((7)^2 +(-1)^2)


\displaystyle d=√(49+1)


\displaystyle d=√(50)

d ≈ 7.1

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