Slope-intercept form: y = mx + b
[m is the slope, b is the y-intercept or the y value when x = 0 --> (0, y) or the point where the line crosses through the y-axis]
y = 3x + 2 m = 3 b = 2
y = 3x m = 3 b = 0
y = 3x + 2 is different from the graph of y = 3x because it has a y-intercept of 2, while the y-intercept of y = 3x is at the origin (0, 0)