for each, replace x with the number in the parenthaseses
a.
[tex]f(2.5)=\frac{1}{2.5-2}=\frac{1}{0.5}=2[/tex]
b.
[tex]f(1.75)=\frac{1}{1.75-2}=\frac{1}{-0.25}=-4[/tex]
c.
[tex]f(2)=\frac{1}{2-2}=\frac{1}{0}=undefined[/tex]
division by 0 is not allowed so it is undefined at the point
d. because division by 0 is not allowed
