The equation y = 2x-2 can be written as y = 2x+(-2)
Adding a negative number is the same as subtraction. Eg: 2+(-3) = 2-3
The equation y = 2x+(-2) is in the form y = mx+b where
m = 2 is the slope
b = -2 is the y intercept
Therefore the final answer is simply -2
The graph crosses the y axis at -2 on the vertical number line. The y intercept as an ordered pair is (0,-2). The x coordinate is always 0 for the y intercept.
