Question

Evaluate the function f(r) = √r + 1 - 1 at the given values of the independent variable and simplify.

Answer 1

Step-by-step explanation:

I'm going to assume you meant to write $\sqrt{r+1}$ in the equation as +1 - 1 wouldn't make much sense since they would just cancel out.

a. $f(-1) = \sqrt{-1 + 1} - 1\\ f(-1) = \sqrt{0} - 1\\f(-1) = 0-1\\f(-1) = -1$

b. $f(24) = \sqrt{24 + 1} - 1\\ f(24) = \sqrt{25} - 1\\f(24) = 5 - 1\\f(24) = 4$

c. $f(x-1) = \sqrt{(x-1)+1} -1\\f(x-1) = \sqrt{x} - 1$