Question

7. Find the value of r so the line that passes through (-5, 2) and (3, r) has a
slope of - 1/2

Answer 1

Answer:
`r=-2`

Explanation:

Substituting into the slope formula,

`(r-2)/(3-(-5))=-(1)/(2)\\\\(r-2)/(8)=-(1)/(2)\\\\r-2=-4\\\\r=-2`