Step-by-step explanation:
y-intercept form is in the equation y=mx + b. m represents the slope and b represents the y-intercept.
To graph a line, you need at least two points. In y-intercept form, you have the y-intercept as a point. (0, b) Plot the value of b along the y- axis.
The slope, m, is in the form rise/run (if run is 1, it may not be written like that).
From the y-intercept point, count the number of squares given by your slope. Count the number of squares up/down for rise, and the number of square rightwards for run. If the slope is negative, count downwards.