The slope of this line is [ 3 - 0 ] / [ 0 - -8 ] = 3 / 8
So....using (0,3,), the equation of the line is
y = (3/8) x + 3
And using (t, 5), t can be found thusly :
5 =(3/8) t + 3 subtract 3 form both sides
2 = (3/8)t multiply both sides by 8/3
16/3 = t
