How do you find the intercepts of #y=-3-3x#?
The intercepts are the points on the axes.
All points on the x-axis have a y-value = 0.
All points on the y-axis have an x-value = 0.
To find the y-intercept, make x = 0 and solve for y.
To find the x-intercept, make y = 0 and solve for x.