How to find a ray

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ISEE Upper Level Quantitative Reasoning › How to find a ray

Questions 1 - 1

Find the distance between and .

$\sqrt{10}$

$\sqrt{5}$

$\sqrt{2}$

Explanation

To find the distance, first remember the distance formula: $\sqrt{(x_{2}-x_{1})^2+(y_{2}-y_{1})^2}$ . Plug in so that you have: $\sqrt{(1+2)^2+(4-3)^2}$ . Simplify so that you get $\sqrt{3^2+1^2}$ . This yields $\sqrt{10}$ .

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