Number Sets and Set Notation Mini-Review

Multiple Select

7 is a

• integer

• whole number

• rational number

• irrational number

Multiple Select

0.564114726472816... is a

• irrational number

• rational number

• integer

• whole number

Multiple Select

Which of the following numbers is an integer?

• $$\frac{3}{5}$$

• 0.25

• -100

• 30.25

Multiple Select

$$\frac{3}{7}$$  is an example of a 

• integer

• rational number

• whole number

• natural number

Multiple Choice

Convert into its interval notation:

$$x>-9$$   

• $$\left(-9,\ \infty\right)$$  

• $$\left[-9,\ \infty\right]$$  

• $$\left[-9.\ \infty\right)$$  

• $$\left(-9,\ \infty\right]$$  

Multiple Choice

Convert into its interval notation:

$$0\le x\le3$$  

• [0, 3]

• (0, 3)

• [0, 3)

• (0, 3]

Multiple Choice

What is the domain?

• $$\left(-\infty,\ -3\right]$$

• $$\left[3,\ -\infty\right)$$

• $$\left(-\infty,3\right]$$

• $$\left(-\infty,\infty\right)$$

• None of the answer choices