Question

is it possible for a linear function to have a y-intercept

Answer 1

A linear function is just a line. Do lines cross through the y axis?

Answer 2

yes

Answer 3

Most do. Vertical lines (other than the y axis itself) don't.

Answer 4

Diego: Try graphing a couple of linear functions and observe whether or not they cross the y-axis: y = 2x - 1, y = x, 2y = 5

Answer 5

a vertical line is not a function, so it is always the case that a linear function crosses the \(y\) axis