Equations and Inequalities

What inequality does the number line graph represent

• x ≤ 4
• x ≥ -4
• x < -4
• x < 4

What inequality does the number line graph represent?

• x ≥ 3
• x > 3
• x < -3
• x ≤ -3

• Open
• closed

Match the graph with its inequality.

• a > 11
• a < 11
• a ≥ 11
• a ≤ 11

When you graph an inequality, use a closed circle with which symbols?

• ≤, ≥ 
• <, >
• ≤, <
• ≥, >

When graphing an inequality, use an open circle with which symbols?

• <, >
• ≤, ≥ 
• ≤, <
• ≥, >

In the equation x + 7 = 12 , what should you do to isolate the variable? 

• Subtract 7 from both sides.

• Add 7 to both sides.

• Multiply both sides by 7.

What is the inverse operation of subtraction?

• Subtraction
• Multiplication
• Division
• Addition

What is the inverse operation of division?

• Division
• Multiplication
• Addition
• Subtraction

When solving an equation, our goal is to:

• add all the numbers together.
• use a calculator.
• eat lunch.
• isolate the variable to solve.