First you must know the standard equation of a line and this is expressed as:

where:
m is the slope of the line
c is the intercept
Given
Slope m = 5/2
Next is to get the intercept c:
To do that, you will substitute m = 5/2 and the coordinate (0, -4) into the equation above as shown:

Next is to get the required equation by substituting m = 5/2 and c = -4 into the equation above as shown:

Hence the required equation is espressed as:
