Precalculus Examples

$(1, 2)$ , $(2, 9)$

Use the midpoint formula to find the midpoint of the line segment.

$(\frac{x_{1} + x_{2}}{2}, \frac{y_{1} + y_{2}}{2})$

Substitute in the values for $(x_{1}, y_{1})$ and $(x_{2}, y_{2})$ .

$(\frac{1 + 2}{2}, \frac{2 + 9}{2})$

Add $1$ and $2$ .

$(\frac{3}{2}, \frac{2 + 9}{2})$

Add $2$ and $9$ .

$(\frac{3}{2}, \frac{11}{2})$

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