Question

I need help with this question

Answer 1

Answer: B

Explanation:

To find r, we need to use the formula to find slope. The formula is
`m=(y_(2)-y_(1) )/(x_(2) -x_(1) )`. Since we are given the coordinates and slope, we can plug them into the formula and solve for r.

`(2)/(3) =(3-5 )/(r-4)` [multiply both sides by r-4]

`(2r-8)/(3)=3-5` [subtract]

`(2r-8)/(3)=-2` [multiply both sides by 3]

`2r-8=-6` [add both sides by 8]

`2r=2` [divide both sides by 2]

`r=1`

Now that we found that r=1, we know that the answer is B.