Answer:
See below
Explanation:
There is a great free graphing program called Desmos.
y = 1/2 x - 3/2
I highlighted 3 points for you.
The y-intercept is (0, -1.5) This is where the graph crosses the x axis. Another name for -1.5 is -3/2. That is the number that you see at the end of the equation.
The slope is 1/2. Look at the other two points on the line (-1,-2) and (1,-1) If you start at the first point and go up 1 and then 2 right you will end up at the second point. That is the slope.