we have the function
Part A
Remember that
the denominator cannot be equal to zero
so
5x+11=0
5x=-11
x=-11/5
therefore
the value of x can not be equal to x=-11/5
the domain is the interval (-infinite, -11/5) U (-11/5, infinite)
Part B
Find f(1)
Remember that
f(1) is the value of f(x) when the value of x=1
substitute
and the coordinates of the point are (1,3/16)
x=1
y=3/16