Quiz 1.1 Expressions and Equations

What is an expression?

• an expression, rule, or law that defines a relationship between one variable and another variable

• a combination of numbers, variables, functions

• a value or number that never changes in expression.

• a statement that the values of two mathematical expressions are equal

Tags

CCSS.6.EE.A.2B

What is an equation?

• statement of equality between two expressions consisting of variables and/or numbers.

• a relation between a set of inputs having one output each

• a combination of numbers, variables, functions

• a single mathematical expression

Tags

CCSS.6.EE.A.4

If 5x + 7 = 22 then what does x = ?

Mathematical Equivalence

ON

Tags

CCSS.7.EE.B.4A

• 2

• 8

• 2 and 8

• -2 and -8

Tags

CCSS.HSA.REI.A.1

CCSS.HSA.REI.B.3

1. If |2x - 5| = x - 3, what is the solution for x?

(a)  

Tags

CCSS.HSA.REI.A.1

CCSS.HSA.REI.B.3

CCSS.HSA.CED.A.1

What is the reason that absolute value is always written as a positive?

• Absolute value is talking about numbers so it must be positive.
• Absolute value does not always have to be positive.
• Absolute value is like a clock it has only positive numbers.
• Absolute value is talking about distance, distance is always measured by positive numbers.

Tags

CCSS.6.NS.C.7C

• {15,-15}

• {2,-2}

• {8,-8}

Tags

CCSS.HSA.REI.B.3

CCSS.HSA.CED.A.1

CCSS.HSA.REI.A.2

• {-8,0}

• {49,53}

• {8,-8}

• {49,14}

Tags

CCSS.HSA.REI.A.1

CCSS.HSA.REI.B.3

CCSS.HSA.CED.A.1

• {12,5}

• {-5,18}

• {18,12}

• {-5,5}

Tags

CCSS.HSA.REI.A.1

CCSS.HSA.REI.B.3

CCSS.HSA.CED.A.1

• {0,-1}

• {0,-14}

• {0,0}

• {1,-1}

Tags

CCSS.HSA.REI.A.1

CCSS.HSA.REI.B.3