# Vocabulary Flashcards

1
Q

What is a term?

A

Single number, variable, or a number times a variable.

2
Q

What is a coefficient?

Give an example

A

A number next to a variable

2a - the “2” is the coefficient

3
Q

What is a constant

A

A number by itself

5x + 7

“7” is the constant

4
Q

An algebraic expression is 1or more terms separated by _________ symbol(s)

A

+ or -

5
Q

When combining like terms, we add the variables together as well as the coefficients.

Exp. 3x + 2x = 5x²

True or False

A

False

When adding or subtracting (Combining) like terms, the variable stays the same.

2x + 3x = 5x

6
Q

An equation is a statement that 2 algebraic expressions are equal.

True or false

A

True

7
Q

An equation always includes an “=” symbol

True or False

A

True

8
Q

3x - 4

3x - 4 = 12

Algebraic Expression or Algebraic Equation

A

Expression

Equation

9
Q

2x = 8

Algebraic Expression or Algebraic Equation

A

Equation

10
Q

Equality test for fractions

What is it used for

How do we preform it

A

Cross multiply

11
Q

1 2
- -
4 8

Is this a proportion

A

Yes

12
Q

Which is the numerator and which is the denominator

```                     1
----
2```
A

Numerator = 1 (top number)

Denominator = 2 (Bottom number)

13
Q

Proper / Improper Fraction

Mixed number.

A

Proper: Numerator > Denominator 1/2

Improper: Denominator > Numerator
4/2

Mixed number 2 1/2

14
Q

Whole numbers, rational numbers, and irrational numbers are all this type of number

A

Real

15
Q

5i the square of -25 is this type of number

A

Imaginary number

16
Q

-36, 0, 1, 55 are this specific type of number

A

Whole numbers

17
Q

1/2 , .74, .6666666

A

Rational numbers

18
Q

These numbers are decmils but they are non terminating and non repeating. PIE for example

A

Irrational numbers

19
Q

What are positive integers aka

A

Natural numbers

20
Q

A prime number is only divisible by…..

A

1 and itself