The y intercept is where the line crosses the y axis. You can see that it does so at y=5. The x intercept is where the line crosses the x axis, but it is not immediately apparent where that happens from looking at this graph. However, we can determine that the slope of this line is -2, using the rise/run formula. This means that the formula of this line in y=mx+b form is:
y=-2x+5
Plugging in 0 for y to get the x intercept, you get: