Unit 2.1 (Substitute Values into an Expression) Algebra 1A

Unit 2.1 (Substitute Values into an Expression) Algebra 1A

By Lexi Morrow

​2.1

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I can substitute values into an expression.​

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Multiple Choice

Which is not an example of a varable?

• a

• 1

• c

• w

Fill in the Blank

Expressions are numbers, symbols, and __________ that are grouped together to represent a pattern.

Multiple Choice

$$2a+1$$  is the same as?

• $$2+a+1$$  

• $$\frac{2}{a}+1$$  

• $$2\left(a\right)+1$$  

• $$2-a+1$$  

Fill in the Blank

If x = 3, then what is $$3x-4$$  

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Multiple Choice

If $$x=-1$$  , then $$3x-4$$  is?

• $$-7$$  

• $$-1$$  

• $$0$$  

• $$-8$$  

Multiple Choice

If $$x\ =\ 0$$  , then $$3x-4$$  is?

• $$4$$  

• $$-1$$  

• $$-4$$  

• $$7$$  

​Complete 2.1 practice on page 2 before you move on 2.2 on page 3.

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Turn in your packet before you leave for the day.​