The slope over the interval 1 ≤ x < 3 is m = 3 / 2 .
Given :
the slope over the interval 1 ≤ x < 3
From the graph :
take two points which lies on the interval
( 1 , 0 ) and ( 3 , 3 )
slope :
Slope is the ratio of the rise, the vertical change, to the run, the horizontal change of a line .
slope m = y2 - y1 / x2 - x1
= 3 - 0 / 3 - 1
= 3 / 3 - 1
= 3 / 2
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