Domain of rational and radical functions

What is the domain restriction of $f\left(x\right)=\sqrt{x+5}$ ? 

•  $x\ne0$  

•  $x\ne-5$  

•  $x\ge-5$  

•  $x\ge0$  

Tags

CCSS.HSA.REI.A.2

What is the domain restriction of $f\left(x\right)=\frac{3}{2x+7}$  ?

•  $x\ne\frac{7}{2}$  

•  $x\ne-\frac{7}{2}$  

•  $x\ne-7$  

•  $x\ne7$  

Tags

CCSS.HSA.APR.D.7

What is the DOMAIN of the function?

• [-3, ∞)

• [0, ∞)

• [3, ∞)

• (-∞, 0]

Tags

CCSS.HSF.IF.B.5

What is the domain of the function in this graph?

• (-∞, 3]

• [3, ∞)

• (-∞, 0]

• [0, ∞)

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

What are the domain restrictions of $f\left(x\right)=\frac{x+3}{x^2-16}$  ?

•  $x\ne4,-4$  

•  $x\ne0$  

•  $x\ge16$  

•  $\left(-4,4\right)$  

Tags

CCSS.HSA.APR.D.7