Sketch the graph y = |x - 5|. Evaluate
. What does this value of the integral represent on the graph?
Given equations are:
y = |x - 5|
y1 = x - 5, if x - 5 ≥ 0
y1 = x - 5 …… (1), if x ≥ 5
And y2 = - (x - 5), if x - 5 < 0
y2 = - (x - 5) …… (2), if x < 5
So, equation (1) is straight line that passes thorough (5,0). Equation (2) is a line passing through (5,0) and (0,5). So, the graph of which is as follows:


(As when x is between (0,1) the given equation becomes y = - (x - 5) as shown in equation (2) shown ass shaded region in the above graph)
(from equation (2))

Now integrating by applying power rule, we get

Now applying the limits we get

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Hence the value of
represents the area of the shaded region OABC (as shown in the graph) and is equal to
square units.