3. Select the inverse of the given relation.

Answer:
E.
Step-by-step explanation:
We want to switch the values of x and y.
[tex]x=\sqrt{4y +1}[/tex]
Now solve for y.
x^2 = 4y + 1
x^2 -1 = 4y
[tex]y = \frac{x^{2} -1} {4}[/tex]