step 1
Find the slope of the blue line
we need two points
so
looking at the graph
we take
(1,0) and (2,1)
m=(1-0)/(2-1)
m=1/1
m=1
step 2
Find the slope of the red line
we take the points
(0,1) and (1,0)
m=(0-1)/(1-0)
m=-1
step 3
Compare the values
1 is greater than -1
therefore
the blue line has a greater slope
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