Question

what is the domain of the following parabola

Answer 1

Answer:

C. All real numbers.

Step-by-step explanation:

We have been given an image of a parabola. We are asked to find the domain of given parabola.

We know that domain of a function is all real values of x for which function has a defined value.

We know that domain of a quadratic function is all real numbers, therefore, option C is the correct choice.

Answer 2

Answer: R

Step-by-step explanation: The domain of a function is the set of all x-values of the function.

The x-values on a coordinate system are the left-and-right values and

we can see that the parabola is expanding infinitely to the left and

to the right so the domain of the function is all real numbers.

Although there is an all real numbers option, you can also represent

this idea using a capital R like I have done below.