Semester Exam Review 2

Select from the multiple-choice below:

• y=5/9x

• y=9/5x

• y=5/9x+32

• y=9/5x+32

Answer explanation

When graphing consider the two parameters:

1) y-intercept

2) slope

PEMDAS (Order of Operations) stands for which of the following:

• Please Excuse My Dear Aunt Sally

• Please Excuse Mysteries During the Algebra 1 Semester

• Parentheses, Exponents, Multiplication, Division, Addition, and Subtraction

• Parent Functions, Exponential Functions, Multiplicative Pairs, Divisible Sequences, Additives, and Subscripts

Answer explanation

Don't forget "basic math skills", which includes order of operations.

Distributive Property:

• 3(3+7) = 3x3 + 3x7

• 3(3+7) = 3x3 + 3x3

• 3(3+7) = 3+3 x 3+7

• 3(3+7) = 3+3 + 3+7

Answer explanation

For any numbers a, b, and c: a(b+c)=ab+ac and (b+c)a=ba+ca Also, a(b-c)=ab -ac and (b-c)a = ba-ca

Like Terms:

• Terms that contain the same variables,without corresponding variables having the same power.

• Terms that contain different variables, that are to the same power.

• Terms that contain the same variables,with corresponding variables having the same power. 

• Terms that contain different variables to different powers.

Answer explanation

Review vocabulary:

Terms that contain the same variables,with corresponding variables having the same power. 

Simplest form:

• When an expression contains like terms or parentheses.

• When an expression contains no like terms or parentheses.

• When an equation contains no like terms or parentheses.

• When an equation contains like terms or parentheses.

Answer explanation

Review Vocabulary: Unit 1

When an expression contains no like terms or parentheses.

Coefficient:

• A numerical constant

• The variable within a term.

• The numerical subscript of a term.

• The numerical factor of a term.

Answer explanation

Review vocabulary: Unit 1

The numerical factor of a term.

Vertical Line Test:

• Used to see if a graph represents a relation.

• Used to see if a graph represents a function.

• Used to see if a graph is discrete.

• Used to see if a graph is continuous

Answer explanation

Review vocabulary: Unit 2

Used to see if a graph represents a function.

_ functions – set of basic functions from which related functions are derived by transformations

_ is the value(s) of x such that the y value of the relation equals zero. (Another name for x-intercept.)

Answer explanation

Review vocabulary: Unit 2

Zeros – the value(s) of x such that the y value of the relation equals zero

_ is a relationship between input and output, in which there is exactly one input per output.