The slope-intercept form is
y = mx + b,
where m = slope, and b = y-intercept
Now we get the y-intercept and the slope from the graph.
The y-intercept, b, is 4.
To find the slope, start at (-2, 0). Go up 4 and right 2 to point (0, 2). That is a rise of 4 and a run of 2.
m = slope = rise/run = 4/2 = 2
Equation:
y = mx + b
y = 2x + 4
Answer: y = 2x + 4
