Part a
we have the function
over the interval [0,25]
using a graphing tool
Part B
we have the function
over the interval [-20.20]
To graph an absolute value function we need three points
the vertex and two other points
the vertex is (0,0)
For x=-20
g(x)=20
the second point is (-20,20)
and
For x=20
g(x)=20
the third point is (20,20)
Plot the three points and join them to graph the function in the given domain