# What is the domain and range of #y=x^2+3#?

##### 1 Answer

Sep 7, 2015

Domain is

Range is

#### Explanation:

Domain of a function is a subset of

To calculate the range you have to analyse the graph of a function:

graph{(y-x^2-3)(x^2+(y-3)^2-0.04)=0 [-8.6, 9.18, -0.804, 8.08]}

From this graph you can easily see, that the function takes all values greater han or equal to