Question

Please help don’t understand

Answer 1

r = 4

Explanation:

If we clearly observe a point and the slope of the line are given.

Point=(5, -6) slope= -5

We know that the equation of the line having slope m and passing through point (
`x_(1) , y_(1)`) is

`y-y_(1)=m(x-x_(1))`

Now the equation of the line is
`y-(-6)=(-5)*(x-5)`

`y+6=-5x+25`

`5x+y=19`

Now given that (3,r) lies on this line

`5*3+r=19`

r = 4