Vocabulary Terms

Question 1

Co-efficient

Answer 1

In an expression or equation, the coefficient is a number in front of a variable. For example, in the expression 8X the coefficient is eight and a variable is X. In the expression 4x/5X, the coefficient is 4/5.

Question 2

Compound inequality

Answer 2

A sentence linking to conditions with AND or OR. At least one of the conditions is an inequality.

Question 3

Constant

Answer 3

A number or a polynomial of degree zero.

Question 4

Continuous

Answer 4

A polynomial function his graph is smooth without “jumps”.

Question 5

Function

Answer 5

A relation in which each element of the domain is paired with exactly one element of the range.

Question 6

Irrational number

Answer 6

A real number that is not a rational number, I E cannot be expressed as the quotient of two integers.

Question 7

Linear function

Answer 7

A function is a linear function if and only if it’s domain is the set of all real numbers and it’s equation can be written in the form Y=MX + B.

Question 8

Ordered pair

Answer 8

A pair of numbers that identifies the location of the particular point on a graph.

Question 9

Rational number

Answer 9

A number that can be expressed as the quotient of two integers.

Question 10

Real number

Answer 10

The set of all rational and irrational numbers.

Question 11

Relation

Answer 11

A set of ordered pairs.

Question 12

Square root

Answer 12

For example the number 4 is the square root of 16 because 4×4 = 16. The number 2 is the cube root of 8 because 2×2×2 = 8.

Question 13

X axis

Answer 13

The horizontal axis.

Question 14

Y axis

Answer 14

The vertical axis.

Question 15

Y intercept

Answer 15

The Y coordinates of the point at which a line crosses the Y axis.

Question 16

X intercept

Answer 16

The X coordinate of the point at which a line crosses the X axis.

Question 17

Absolute value

Answer 17

A value that does not change.

Question 18

Equation

Answer 18

And equation is a mathematical statement that contains an =, like 8X plus B equals C.

Question 19

Exponent

Answer 19

An exponent is a power that a number is raised to.

Question 20

Algebraic Expression

Answer 20

An algebraic expression contains at least one variable.

Question 21

Formula

Answer 21

A formula shows a mathematical relationship between expressions.

Question 22

Inequality

Answer 22

An inequality is a mathematical expression that contains an inequality symbol. The inequality symbols are: less than , less than or equal to, greater than or equal to, and not equal to.

Question 23

Integer

Answer 23

The integers are the numbers. For example -3, -2, -1, 0, 1, 2, 3

Question 24

Operation

Answer 24

An operation is a rule for taking one or two numbers as inputs and producing a number as an outfit. Some arithmetic operations are multiplication, division, addition and subtraction.

Question 25

Term

Answer 25

In an expression or equation, terms are numbers, variables, or numbers with variables. For example, the expression 3X has one term, the expression 4x squared +7 has two terms.

Question 26

Variable

Answer 26

A symbol used to represent a quality that can change. For example, in the expression 2X + Y, X and Y represent variables.

Question 27

y = mx + b

Answer 27

This is the equation for almost any line. m=slope b= y-intercept For example, a line with a slope of 50 and a y-intercept of 32 would have the equation y=50 X +32.

Question 28

Slope

Answer 28

The slope is a number that shows how deeply a | line slants we often use the letter m to stand for a line's slope.

Question 29

Distributive property

Answer 29

A property of real numbers that states that the product of a number and the sun or difference of two numbers is the same as the sun or difference of their products. Example: 2(14+4)=2x14+2x4

Question 30

Perfect square

Answer 30

A perfect square is the product of a rational number multiplied by itself.

Question 31

Simplify

Answer 31

To put an equation in its simplest form.

Question 32

Whole numbers

Answer 32

Whole numbers are your basic counting numbers. For example 1, 2, 3, 4, 5...

Question 33

Discrete data

Answer 33

Data that can only take certain values. For example, the number of students in a class - you can't have half a student.

Question 34

Non-linear function

Answer 34

Equations his graphs are not straight lines are called non-linear functions.

Question 35

Domain

Answer 35

The domain is the set of all first elements of ordered pairs or the X coordinates. (X,Y) For example, in the ordered pair (2,5) 2 would be the domain.

Question 36

Range

Answer 36

The range is the set of all second elements of ordered pairs or the Y coordinates. (X,Y) For example, in the ordered pair (8,5) 5 would be the range.

Question 37

Evaluate

Answer 37

To evaluate and algebraic expression, you have to substitute a number for each variable and perform the arithmetic operations. In the example: X + X = 12 the variable X is equal to 6. 6+6 = 12.

Question 38

Slope

Answer 38

The measure of the steepness of a line.

Question 39

Numerical expression

Answer 39

A numerical expression is a mathematical phrase that contains operations and numbers.