4 3 solving absolute value equations
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4-3 Solving Absolute value equations. Miss battaglia – algebra 1 CP Objective: Solve equations that involve absolute value; use absolute value equations to model real-world problems. Warm up. Solve . Work with a partner. The actual results could vary from the poll results by -3% to 3%.

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4-3 Solving Absolute value equations

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4 3 solving absolute value equations

4-3 Solving Absolute value equations

Miss battaglia – algebra 1 CP

Objective: Solve equations that involve absolute value; use absolute value equations to model real-world problems.


Warm up

Warm up

  • Solve


Work with a partner

Work with a partner

The actual results could vary from the poll results by -3% to 3%.

What is the greatest percent of voters who might vote for Blake?

What is the least percent of voters who might vote for Cortez?

According to the poll, can Cortez get a majority of the votes?


Example

example

  • Use a number line to solve |m| = 2.5


Use a number line to solve

Use a number line to solve

  • | b | = 2b) 4 = | y |

  • c) | x | = 5d) x = | 5 |


Critical thinking

Critical thinking…

  • Is there a solution for | x | = - 3? Explain.


Solve

solve

  • | x | + 5 = 11

GOAL:

Get absolute value by itself on one side of equation.


Solve1

solve

  • | x | + 11 = 5

GOAL:

Get absolute value by itself on one side of equation.


Solve2

solve

  • 3 = |w| - 4

GOAL:

Get absolute value by itself on one side of equation.


Solve3

solve

GOAL:

Get absolute value by itself on one side of equation.


4 3 solving absolute value equations

The equation | p – 9 | = 3 represents the max and min % of people who are undecided. Solve the equation.


Solve check

Solve & Check

  • | c – 2 | = 6


Solve check1

Solve & Check

  • | x + 8 | = 5


Homework

homework

  • Pg172-173 #5–7, 11, 16, 22, 23, 29

  • STUDY FOR QUIZ TOMORROW!


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