Adding and Subtracting Rational Expressions in 7th Grade Math

What is the purpose of using an algorithm in solving two-step inequalities?

• To make the process longer

• To use more drawing in the solution

• To avoid drawing models for large numbers

• To complicate the steps involved

What is the first step in solving inequalities using reverse PEMDAS?

• Draw a model

• Add or subtract

• Multiply or divide

• Graph the solution

What does the reverse PEMDAS method prioritize?

• Exponents first

• Multiplication or division first

• Parentheses first

• Addition or subtraction first

How is an inequality graphed when the variable is less than a number?

• Open circle shaded to the right

• Solid circle shaded to the left

• Open circle shaded to the left

• Solid circle shaded to the right

When graphing 'm is less than 5', what symbol is used at 5?

• Triangle

• Square

• Open circle

• Solid circle

What special action must be taken when dividing both sides of an inequality by a negative number?

• Flip the inequality sign

• Keep the inequality sign the same

• Add 5 to both sides

• Subtract 5 from both sides

What is the result of dividing both sides of an inequality by a positive number?

• The inequality sign flips

• The inequality sign remains unchanged

• The inequality is no longer valid

• The inequality becomes an equation

What happens to the inequality sign when multiplying or dividing by a negative number?

• It remains unchanged

• It becomes an equal sign

• It disappears

• It flips to the opposite direction

What does substituting a value into an inequality help to determine?

• The complexity of the inequality

• The number of solutions to the inequality

• If the value makes the inequality true

• If the inequality is graphed correctly

How do you verify if 'm equals 21' is a solution to the inequality '3m - 15 < 49'?

• By adding 15 to both sides

• By substituting 'm' with 21

• By dividing both sides by 3

• By graphing