Five mark exercise problem I — task. Mathematics State Board, Class 10.

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What is the slope of a line perpendicular to the line joining

$A(5,1)$ and

$P$ where

$P$ is the midpoint of the segment joining

$(4,2)$ and

$(-6,4)$ .

Answer:

The coordinates of the midpoint

$P$ is

$(i, i)$ .

Slope of

$AP =$

$\frac{i}{i}$ .

Slope of the line perpendicular to

$AP$ is .

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