What is the order of 2/3, -0.6, 0.65, and 4/5 from least to greatest?

Convert 2/3 and 4/5 to decimals so
2/3 = .6666666666666...you get it
4/5 = .8
so -0.6, 0.65, 2/3, 4/5

The correct answer for this question is this one:

The first function has the points
x -1,-2,-3,2,3
y  3,5,7,-3,-5

From that, the slope we can get is 
m = (y1 - y2) / (x1 - x2)
m = (3 - 5) / (-1 - -2)
m = -2 / 1
m = -2

The second function, given a graph, it has a slope of (using rise / run technique):
m = -4 / 1
m = -4

The function that has the greater rate of change (slope) is the SECOND function.