Find the x intercept of: y = x + 3
Ok all this is asking you to do is find out where the line crosses the x-axis.
This is found by setting y = 0 and solving for x. So:
y = x + 3 Set y = 0.
0 = x + 3 Subtract 3 from both sides.
x = -3
The point at which the line y = x + 3 crosses the x-axis is at point: (-3, 0).