Find the Distance Between Two Points (-7,9) , (5,4)

$(- 7, 9)$ , $(5, 4)$

Step 1

Use the distance formula to determine the distance between the two points.

$Distance = \sqrt{{(x_{2} - x_{1})}^{2} + {(y_{2} - y_{1})}^{2}}$

Step 2

Substitute the actual values of the points into the distance formula.

$\sqrt{{(5 - (- 7))}^{2} + {(4 - 9)}^{2}}$

Step 3

Simplify.

Multiply $- 1$ by $- 7$ .

$\sqrt{{(5 + 7)}^{2} + {(4 - 9)}^{2}}$

Add $5$ and $7$ .

$\sqrt{12^{2} + {(4 - 9)}^{2}}$

Raise $12$ to the power of $2$ .

$\sqrt{144 + {(4 - 9)}^{2}}$

Subtract $9$ from $4$ .

$\sqrt{144 + {(- 5)}^{2}}$

Raise $- 5$ to the power of $2$ .

$\sqrt{144 + 25}$

Add $144$ and $25$ .

$\sqrt{169}$

Rewrite $169$ as $13^{2}$ .

$\sqrt{13^{2}}$

Pull terms out from under the radical, assuming positive real numbers.

$13$

Step 4