Answer: 1/2 or 0.5
Slope formula: (y1-y2) / (x1-x1)
In this example we can set (-4,7) and (-8,5) as:
(-4,7) —> (x1,y1)
(-8,5) —> (x2,y2)
once we plug in our values for x1,y1,x2 and y2 we get:
slope=(7-5)/(-4-(-8))
(double negatives, so it simplifies to -4 + 8)
slope=2/4
slope=1/2
Hope this helped!