Question

Puzzle #2,
Domain and range someone HELP!!

Answer 1

1. G

2. F

3. B

4. F

Explanation:

1. There is no restriction on x-values (sqrt or n/0 form). so it can take all real values.

2. Let y=f(x)

On expressing x in terms of y, we obtain:

`x=√(2(y+4))+2`

Now, the expression in the root ( 2(y+4) ) must be greater than or equal to 0

Algebraically, 2(y+4) ≥ 0

=> y ≥ -4

3. The x-values (domain/inputs/pre-images) extend from (-4) to +ve infinity or x ≥ -4

4. The y-values (range/outputs/images) extend from (-4) to +ve infinity or y ≥ -4