Question

Find the value of r so that the line that passes through them has the given slope. (3,5)(-2,r) slope = -1

Answer 1

The slope is given by

`-1=(r-5)/(-2-3)`

then, we have to solve for r

`\begin{gathered} -1=(r-5)/(-5) \\ 5=r-5 \\ r=10 \end{gathered}`

Then r=10