The first time I believe it's 1/4 and then 1/7
<span>(8.64x10^6) + (1.334x10^10)
</span>=1.334864 x 10^10
The slope, m, is given by the equation m = (y2-y1)/(x2-x1), where (x1, y1) and (x2, y2) are points on the graph. Thus:
m = (-18-(-18))/(-15-12)
= (-18+18)/-27
= 0/27 = 0
Therefor the slope is 0