Algebra 1 - Functions/Domain/Range

Given 

 $g\left(a\right)=5-3a^2$ 

Find  $g\left(-2\right)$   

•  $g\left(-2\right)=-7$  

•  $g=17$  

•  $g\left(-2\right)=5-2x^2$  

•  $\frac{7}{3}$  

Determine whether the graph represents a function.

• Function

• NOT a Function

• Sometimes a Function

Is the set of ordered pairs a function?

• Yes

• No

• Sometimes

Is the set of ordered pairs a function?

• Yes

• No

• Sometimes

• $f\left(4\right)=-1$

• $f\left(4\right)=39-10x$

• $f\left(4\right)=95$

• $f\left(4\right)=1$

For the function

 $g\left(x\right)=-2x+5$ , find  $x$  if  $g\left(x\right)=23$   

• 9

• -9

• -41

• -14

Given

 $g\left(x\right)=-2x+5$ and  $q\left(x\right)=x^2+x$ Find  $\frac{g\left(-1\right)}{q\left(-1\right)}$   

• 7

• 0

• Undefined

•  $-\frac{7}{2}$  

Consider

 $a\left(x\right)=7-3x$  and   $b\left(x\right)=x^2+6$ Which is greater  $a\left(-3\right)$  or  $b\left(-3\right)$ ?

•  $a\left(-3\right)>b\left(-3\right)$  

•  $b\left(-3\right)>a\left(-3\right)$  
  

• a is bigger

•  $a\left(-3\right)=b\left(-3\right)$  
  

Find the value of $f\left(5\right)$  

•  $f\left(5\right)=-2$  

•  $f\left(5\right)=5$  

•  $f\left(5\right)=7$  

•  $f\left(5\right)=1$  

Determine the range of the graph.

• $\left[-5,11\right]$

• $\left[-4,8\right]$

• $\left(-4,8\right)$

• $\left[-4,\infty\right)$