Question 1026839
The graphs of the linear functions {{{f(x) = x}}}, {{{k(x) = (3/4)x}}}, and {{{t(x) = (4/3)x}}} are all increasing from left to right, due to the fact that their slopes are all positive.  They also have the same y-intercept of 0 (the origin).  
The graphs differ only in their rates of increase, because of the differences in slopes.  t(x) rises the fastest, followed by f(x), and lastly, k(x).