Question

Find f(1/3) and f(square root of 5)​

Answer 1

Answer:

Hey there friend! So in Step 2 you get ((5+3x)^2 which is equivalent to (5+3x)*(5+3x).

Answer 2

Answer:

f(x)=x−5

For f(x) to be defined, the term under the Square-root should be greater than or equal to zero.

x−5≥0

x≥5

So, the domain is [5,∞)

Now, for  x−5≥0

x−5≥0

y≥0

So, the range is [0,∞)