Topic 4 Math Review (Equations and Inequalities)

Less and or equal to is shown using a _________ on a number line.

• filled in circle

• empty circle

• an x

• a line

Less than on a number line will be shown using a _____.

• filled in circle

• empty circle

• line

• x

Which number line shows  $a\ \le1$  

• 
• 
• 
• 

Which number line shows  $a\ <7$  

• 
• 
• 
• 

 $4x\ =\ 16$   

• x= 3

• x=2

• x=6

• x=4

Jerry wants to ride a roller coaster that says he needs to be at least 5 feet tall to go on. What inequality shows this?

• $a<5$

• $a>5$

• $a\le5$

• $a\ge5$

42+6 ____ 6(7)

•  $<$  

•  $>$  

•  $\ne$  

Which option has a dependent variable of 4?

•  $4c=12$  

•  $c+4\ =12$  

•  $\frac{12}{c}=4$  

Which equation has an independent variable of 3 ?

• $\frac{6}{c}=3$

• $3c=6$

• $2c=6$

• $1+2=3$

What equation matches this graph?

• $y\ =\ x+1$

• $y\ =\ \frac{x}{1}$

• $y\ =\ 1\div x$

• $y=\ x-1$