Question

Which statements about the function f are true? Check all that apply.

The domain of f(x) is {all real numbers}.
The range of f(x) is {all real numbers}.
The domain of f(x) is x.
The range of f(x) is y.
f(2) = 4
f(2) = 2(x + 3)

Answer 1

1, 2 ,5

Explanation:

Answer 2

The domain (or input values) of a continuous line is all real numbers

The range (or output values) of a continuous line is all real numbers

f(2) =4

Explanation:

The domain (or input values) of a continuous line is all real numbers

x can be positive and negative

The range (or output values) of a continuous line is all real numbers

y can be positive and negative

f(2) is the value of y at x =2

f(2) =4

g(2) = 1/2(2) +3