Which function has a greater y-intercept?

Plug r = 0 into the g(r) function to get
g(r) = r+7
g(0) = 0+7
g(0) = 7
So the y intercept of the g(r) function is 7

The y intercept of the h(r) function is 8 as this is the output when the input is 0 (see the first row of the table)

h has a greater y intercept