Find the distance between the points (-3, -3), (4, 5). [2 MARKS]

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Solution

Concept : 1 Mark
Application : 1 Mark

Distance between points $A (x_{1}, y_{1})$ and $B (x_{2}, y_{2})$ is,

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

$D = \sqrt{{(4 - (- 3))}^{2} + {(5 - (- 3))}^{2}}$

$D = \sqrt{7^{2} + 8^{2}}$

$D = \sqrt{113} u n i t s$

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