Hi there!
In the equation y = 3x − 4, the slope is 3, and the y-intercept is -4.
The general formula of a line in slope-intercept form is y = mx + n. In this formula, the variable n, that is positioned in front of the x, represents the slope. The variable n, represents the y-intercept.
When determining the y-intercept of the formula y = 3x - 4 we must be aware of the '-' sign which makes the intercept negative.
~ Hope this helps you!