The y-intercept of a function is the point where the graph crosses the y-axis. This occurs when the value of x is zero.
To find the y-intercept of the function f(x) = 29x + 13, we simply substitute x with 0:
f(0) = 29(0) + 13 = 0 + 13 = 13
Thus, the y-intercept of the function is 13. In coordinate form, this point is (0, 13).