We are given the following equation
[tex]y=4x+3[/tex]Recall that the standard form of the equation in slope-intercept form is given by
[tex]y=mx+b_{}[/tex]Where m is the slope, and b is the y-intercept of the equation.
Comparing the given equation with the standard form we see that the slope is 4.
[tex]slope=m=4[/tex]Therefore, the slope of the given equation is 4