Question

The graph shows the temperature of ice cream in an ice chest during an overnight trip. What is the domain of this function?

The domain is negative 10 through 30.

The domain is all integers from negative 10 through 30.

The domain is all real numbers 0 through 30.

The domain is all integers from 0 through 30.

Answer 1

Domain is the set of x-values on a graph.
In the given graph,the values starts from zero and ends at 30.
Therefore,
The domain is all real numbers 0 through 30.

Answer 2

Let

x-------> the number of hours

y------> the temperature in degrees Fahrenheit

we know that

For
`x=0\ hours`

`y=-10\°\ F`

For
`x=30\ hours`

`y=30\°\ F`

The domain of the function is the interval---------->
`[0,30]`

`0\ hours \leq x\leq 30\ hours`

The range of the function is the interval---------->
`[-10,30]`

`-10\°\ F \leq y\leq 30\°\ F`

therefore

the answer is

The domain is all real numbers 0 through 30