Final answer:
The slope-intercept form of the equation for a line with a y-intercept of -4 and a slope of 2 is y = 2x - 4.
Step-by-step explanation:
In the slope-intercept form of the equation for a line, y = mx + b, m represents the slope and b represents the y-intercept.
Given that the y-intercept is -4 and the slope is 2, the equation for the line is y = 2x - 4.
So, y = 2x - 4 is the slope-intercept form of the equation for a line with a y-intercept of -4 and a slope of 2.