The graph is important especially for the people who presenting something like the businessman or marketing personnel. The graphs summarizes the raw data and presents it into a diagram for the people to be easily comprehend. It allows to us to see the relationship between the variables.
Your question answers itself. You solve by graphing.
I like to subtract one side of the equation from the other, so the solutions are where the graph crosses the x-axis (the resulting function value is zero).
It can be useful to find the "turning point" of each absolute value expression (where its value is zero) and graph that and some points on either side.
To calculate the area it is pi*r^2
so since r = 1/2 d
2.5^2 * pi = area
or
19.625
Answer:
the right answer is number 7
