Answer:
[tex]m=-4[/tex]
Step-by-step explanation:
Two ways: pick two positions, calculate the difference in y and divide it by the difference in x
[tex]m= \frac{\Delta y}{\Delta x} =\frac{21-17}{-7-(-6)} = \frac4{-1}= -4[/tex]
Or, the slope is also the variation in y for every unit increase of x.
In particular, the table gives unit increase in x (-7 to -6, and so on). The slope is simply "what happens to y". In our case, y decreases by 4, so the slope is -4
