Domain of Functions

What's the domain of

 $f\left(x\right)=-2x+5$  

•  $\left(-\infty,\ \infty\right)$  

•  $\left(-\infty,\ 5\right)$  

•  $\left(-\infty,\ 5\right]$  

•  $\left[5,\ \infty\right)$  

What is the domain of the function?

• $\left(-\infty,\ 3\right)$

• $\left(3,\ \infty\right)$
  

• $\left(-\infty,\ \infty\right)$

• $\left(0,\ 3\right)$

Find the domain of

 $f\left(x\right)=x^{2\ }+4x-12$  

•  $\left(-\infty,\ \infty\right)$  

•  $\left(0,\ 12\right)$  

•  $\left(-\infty,\ -2\right)\cup\left(6,\ \infty\right)$  

•  $\left(-\infty,\ -6\right)\cup\left(2,\ \infty\right)$  

What is the domain of the function?

• (-∞, 3]

• [3, ∞)

• (-∞, 0]

• [0, ∞)

Find the domain of h(x):

• (- ∞, ∞)

• [2, ∞)

• (-∞, -2]

• [-2, ∞)

Tags

CCSS.HSF.IF.B.4

CCSS.HSF.IF.B.5

CCSS.HSF.IF.C.7

What's the domain of the function?

• $\left(-\infty,\ -3\right)\cup\left(-3,\ \infty\right)$

• $\left(-\infty,\ \infty\right)$

• $\left(-\infty,\ 1\right)\cup\left(1,\ \infty\right)$

• $\left(-\infty,\ 3\right)\cup\left(3,\ \infty\right)$

Find the domain of the function:  $f(x)=\frac{x}{2x+4}$  

•  $\left(-\infty,\ 2\right)\cup\left(2,\ \infty\right)$  

•  $\left(-\infty,\ 4\right)\cup\left(4,\ \infty\right)$  

•  $\left(-\infty,\ -2\right)\cup\left(-2,\ \infty\right)$  
  

•  $\left(-\infty,\ \infty\right)$  

Find the domain of the function

 $f\left(x\right)=\frac{2}{\sqrt{x-7}}$  

•  $\left(7,\ \infty\right)$  

•  $\left[7,\ \infty\right)$  

•  $\left(-\infty,\ 7\right)$  

•  $\left(-\infty,\ 7\right]$