REMINDER: Entrance Procedures

1. Enter the room quietly.
2. Pick up any handouts.
3. Head directly to your seat.
4. Get out your homework.
5. Start on the warm-up problem(s) for today.

G

B, C

A

E

F

1. Three less than a number.
2. The sum of a number and 20.
3. Twenty more than three times a number.
4. Twenty minus three times a number.
5. Three times a number minus the same number.

There are lots of other possible answers!

1. y + 16
2. 7ab + 11b
3. 4x² + 9
4. 7d + 2e + 10f
5. 5cd + c
6. km

If y = 1:

• 6 + 6 + 10 – 5 = 17
• 1 + 16 = 17

Yes, both equal 13.

No, because they don’t give the same answer for every value of x.

1. 6ab + 2ab + 3ab = 11ab
2. True
3. 5pr + 5 + pr = 6pr + 5
4. True

Section 2-4A: Absolute Value EQUATIONS

Just think…

All points that are exactly two units from zero.

In general, |x – a| is the distance between x and a.

Therefore, |x| is the distance between x and 0.

Today’s Theme: �Unlikely Animal Friendships

Ex. 1: Solve.

You Do:

Ex. 2: Solve

You Do: Solve

Ex 3: Solve and graph.

Ex 4: Solve and graph.

Step 1: Isolate the absolute value expression.

​

Step 2: Split into two separate equations.

​

Step 3: Solve both equations.

You Do:

HOMEWORK

Complete Absolute Value Equations worksheet

• Show ALL work.
• Each problem should have two solutions.