The line in question has a slope of 5 and a y-intercept of (0, 4).
If you aren't familiar with the different forms of a linear equation, you should know that the most commonly used form of a linear equation is the Slope-Intercept form. The slope-intercept form of a linear equation is the type of linear equation which we can create as long as we know the "SLOPE" of the line and the y-"INTERCEPT". We were given the SLOPE & the INTERCEPT of the line in question. Slope-Intercept form linear equation looks like this: y = mx + b. In that equation, m = the SLOPE and b = the INTERCEPT.
It was given that the slope of the line in question is 5, so m = 5. It was also given that the line in question has INTERCEPT of (0, 4) or 4, so b = 4. Plug 5 in for m and 4 in for b, and our equation is
y = 5x + 4