The equation of the line with slope 5\displaystyle {5} and y\displaystyle {y}-intercept (0,4)\displaystyle {\left({0},{4}\right)} can be written in the form y=mx+b\displaystyle {y}={m}{x}+{b} where
the number m\displaystyle {m} is:  
the number b\displaystyle {b} is: