Algebra

Class 12.3.2020

Modeling with Expressions

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Agenda

• Calm Classroom

• Do Now

• Writing Expressions Notes

• Discuss Friday

• Evaluating Expressions Notes

• Practice Time

Open Ended

What are variables? When do we use them?

Multiple Choice

Three times a number increased by nine

• 3h-9
• 3(h-9)
• 3(h+9)
• 3h+9

Multiple Choice

What is the quotient of y and 5?

• y - 5
• y + 5
• y X 5
• y/5

Multiple Choice

The sum of 6 and x

• x + 6
• 6/x
• x + 4
• 6x

Multiple Choice

Product of 4 and p

• 4/p

• 4p

• 12/4p

• 12/4x

Multiple Choice

the difference of 100 and a number w 

• 100 + w 
• 100 / (6 + w)
• 100  - w
• 100 / 6 + w 

Multiple Choice

The product of seven and a number increased by five

• 7+n+5
• 7/n+5
• 7n+5
• 7-n+5

Multiple Choice

• 18
• -18
• 27
• -27

Multiple Choice

(18 - ab) + 4b if a = -2 and b = -5

• 8

• 28

• 48

• -12

Multiple Choice

x² - xy if x = 8 and y = -3

• 88

• 40

• -8

• -24

Multiple Choice

5m + 9n if m = -7 and n = 4

• 71

• 1

• -1

• -71