Equations in slope-intercept form follow a specific format, where m represents the slope of the line and b is the y-intercept.
y= mx+ b
The given equation is already in this form. Below we have highlighted the slope m and y-intercept b.
y=3x-4 ⇔ y= 3x+( - 4)
We can see that the y-intercept is - 4. Therefore, we obtained the answer F.