Answer:
-3
Explanation:
The equation is in slope-intercept form which is y=mx+b
m is the slope, or the rate of change defined by the change in y over the change in x
b is the y-intercept, which is where the graph of the equation will cross the y-axis or when x=0.
Since we are being asked to find the y-intercept and since the y-intercept is b, then b=-3, making the y-intercept -3
So -3 is the correct answer