Question

What is the domain and range of the function below?



Domain: {all real numbers}; Range: {–2, 1}

Domain: {–3, –1, 0, 1, 2}; Range: {–2, 1}

Domain: {–2, 1}; Range: {–3, –1, 0, 1, 2}

Domain: {–2, 1}; Range: {all real numbers}

Answer 1

Please share the function.

Answer 2

@mathmale

Answer 3

In this case you have 5 black dots, each with a separate / different x-value. The domain is the set of all 5 of these x-values. Construct a set using set notation: {-3, .... }

How many y values (unique y values) do you see? The range is the set of these y-values.

Answer 4

1 @mathmale

Answer 5

To answer this question, phagey, you must write out two different sets in the format I explained above.

domain is {-3, -1, .... }

range is { .... }