Simplifying Rational Expressions - TEST

List all the factors of 12

• 1, 2, 3, 4, 6, 12
• 1, 2, 4, 12
• 1, 12
• 1, 2, 3, 4, 5, 6, 12

Tags

CCSS.4.OA.B.4

What is the GCF of 18 and 24?

• 3

• 6

• 8

• 9

Tags

CCSS.6.NS.B.4

What is the GCF of 4 and 12?

• 3
• 1
• 6
• 4

Tags

CCSS.6.NS.B.4

How do we find the domain of an expression?

• set the numerator equal to zero

• set the denominator equal to zero

• reduce

• keep change flip

Find the domain in the following:

 $\frac{3}{4x}$  

•  $x\ \ne\ 4$  

•  $x\ \ne\ 0$  

•  $x\ \ne-\ 4$  

•  $x\ \ne3$  

Find the domain in the following:

 $\frac{5}{x+2}$  

•  $x\ne5$  

•  $x\ne0$  

•  $x\ne2$  

•  $x\ne-2$  

•  $x=all\ real\ numbers$  

Find the domain in the following:

 $\frac{x^2}{4x-12}$  

•  $x\ne4$  

•  $x\ne0$  

•  $x\ne3$  

•  $x\ne-12$  

•  $x=all\ real\ numbers$  

Find the domain in the following:

 $\frac{x+4}{x^2-25}$  

•  $x\ne-4$  

•  $x\ne5\$  

•  $x\ne25\ ,\ x\ne-25$  

•  $x\ne5\ ,\ x\ne-5$  

•  $x=all\ real\ numbers$  

Find the domain in the following:

 $\frac{5x+4}{3}$  

•  $x\ne-4$  

•  $x\ne5\$  

•  $x\ne25$  

•  $x\ne\frac{5}{4}$  

•  $x=all\ real\ numbers$  

Find the domain in the following:

 $\frac{5x+4}{\left(x+3\right)\left(x-6\right)}$  

•  $x\ne-3\ \ ,\ \ x\ne6$  

•  $x\ne-3\ \ ,\ \ x\ne-6$  

•  $x\ne3\ \ ,\ \ x\ne6$  

•  $x\ne3\ \ ,\ \ x\ne-6$  

•  $x=all\ real\ numbers$