The slope is -3 from the slope equation, which is based off two points. We used the first two rows of the table, so (-6 - (-9))/(1-2), which got -3. The y intercept is -3 because on the y column, you can see that for each additional 1 in the x column, it subtracts 3 from the y column, and this shows that with an x coordinate that is 0, the y would be -3. Therefore, in slope intercept form, we get y = -3 x + (-3).
