Answer:
both have same slope
so, we need to find the y intercept of line r
we will find it by making the y intercept unknown factor (z)
r(x)=7/2x+z
5=7/2(1)+z
5-(7/2)=z
3/2=z
so line r equation is 7/2x+3/2
[tex]r(x) = \frac{7}{2} x + \frac{3}{2} [/tex]