Monday, November 8 Make sure your name is on your homework and it is complete (Pr. 3-2) Fill in Agenda Practice 3-3 Bell Work
EXAMPLE A Multiply by a Positive Number Solve. Then graph the solution.
EXAMPLE B Divide by a Positive Number Solve: 4x > 20 Then graph the solution.
Solve the inequality. Then graph the solution Checkpoint Multiply or Divide by a Positive Number 2k 3y 3. 6 <
Consider 4 > 1
PROPERTIES OF INEQUALITY Multiplication Property of Inequality (c < 0) For all real numbers a, b, and for c < 0: If a > b, then ac < bc If a bc Division Property of Inequality (c < 0) For all real numbers a, b, and c < 0: If a > b, then a ÷ c < b ÷ c If a b ÷ c
Things to remember about Multiplying and Dividing Inequalities! Dividing both sides of an inequality by a POSITIVE number and the inequality stays the same. Dividing both sides of an inequality by a NEGATIVE number and the inequality flips and faces the other way. Multiply both sides of an inequality by a POSITIVE number and the inequality stays the same. Multiply both sides of an inequality by a NEGATIVE number and the inequality flips and faces the other way.
EXAMPLE C Multiply by a Negative Number Solve. Then graph the solution.
EXAMPLE D Divide by a Negative Number Solve. Then graph the solution.
Solve the inequality. Then graph the solution 1. 2.
Solve the inequality. Then graph the solution > -5n 3.