# How do you find the range of the function #y=2x^2+1# when the domain is {9, 3, 99}?

##### 2 Answers

Jun 19, 2015

#### Answer:

This function has a range between

#### Explanation:

The domain of the function has only 3 elements, so it will be easy just to calculate the values:

So the function has only the values from range:

Jun 19, 2015

#### Answer:

For a function with finite domain, evaluate the function at each value. The set of results is the range.

#### Explanation:

The range of a function is the set of all values the function attains (the set of 'y-values' or of 'outputs')

For the function given, we find:

So the range is