Variable is a symbol used to represent one or more unknown numbers. It is common to use letters of the alphabet for variables. ex: x, y, z, m
Algebraic Expression is a combination of individual terms and variables separated by plus or minus signs. An expression does not have an “equals” sign.
Like Terms are terms whose variables (such as x or y) AND their exponents (such as the 2 in x2) are the same.
Equivalent expressions are two expressions that are equivalent if they have the same value. Example: 2 + 3 is equivalent to 1 + 4.
2 points
2
Question 1
1.
Select ALL the algebraic expressions that represent the area of the algebra tiles below.
2 points
2
Question 2
2.
Select ALL the algebraic expressions that represent the area of the algebra tiles below.
4 points
4
Question 3
3.
Match the following groups of algebra tiles with the algebraic expression that represents their area.
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Corresponding Item
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2x2 + x + 3
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3x + 4
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2x2 + 2x + 4
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x2 + 2x + 5
Use the image of the algebra tiles below to answer questions #4-7.
1 point
1
Question 4
4.
How many x2algebra tiles are in the image above?
1 point
1
Question 5
5.
How many X algebra tiles are in the image above?
1 point
1
Question 6
6.
How many 1 algebra tiles are in the image above?
1 point
1
Question 7
7.
Write an algebraic expression in simplest form (organized by like terms) that represents the area of the algebra tiles.