math vocab

Question 1

Absolute Value Function

Answer 1

a function that contains an algebraic expression within absolute value symbols.

Question 2

Binomial

Answer 2

The sum of two monomials

Question 3

Complex Conjugates

Answer 3

Two complex numbers of the form a+bia and a-b. product of complex conjugates is a real number

Question 4

Complex Number

Answer 4

A number a+bi where a and b are real numbers. The number a is the real part of the complex number and the bi is the imaginary part.

Question 5

Conjugates

Answer 5

The expression a+√b and a- √b used to rationalize the denominator, who’s product is always a rational number

Question 6

Constant of Variation

Answer 6

a in the equation y=ax. a is the slope

Question 7

Correlation Coefficient

Answer 7

A number denoting b r1 from -1 to 1 that measures how close the points are to forming a line

Question 8

Direct Variation

Answer 8

A linear relationship that can be modeled by the equation y=ax always. y varies directly with x. always had the same y-intercept of 0

Question 9

Domain

Answer 9

The set of all input values (x)

Question 10

Function

Answer 10

A relation in which every input has exactly one output

Question 11

Function Notation

Answer 11

A way to name a function y=mx+b –> f(x)=mx+b. f of x or the value of function on f at x

Question 12

Imaginary unit i

Answer 12

The imaginary unit i is defined as i=√-1 –> i2 =-1

Question 13

Intercept Form of Quadratic
Equation

Answer 13

y = a (x-p)(x-q) p,q = x-intercepts. axis of symmetry is halfway between (p,0)+(q,0). x=p+q/2

Question 14

Linear Function

Answer 14

A function that can be written in the form y=mx+b first degree function. slope cannot be 0. Parent –> y=x, y=1x=0

Question 15

Linear Inequality of Two Variables

Answer 15

System of two or more inequalities in two variables

Question 16

Linear Programming

Answer 16

Process of optimizing a linear objective function subject to a set of constraints

Question 17

Linear Regression

Answer 17

scatter plot and trend line found. As many points above line as below the line. Uses positive and negative correlations.

Question 18

Maximum/Minimum Value of Quadratic Function

Answer 18

The vertex’s y-coordinate minimum if a > 0 = open upwards, maximum if a<0 = open downwards

Question 19

Monomial

Answer 19

An expression that is a number, a variable, or a product of numbers and/or variables

Question 20

Opposite

Answer 20

The opposite of b is written as -b. Two numbers that are the same distance from zero on the number line.

Question 21

Parabola

Answer 21

The U-shaped graph of a quadratic function

Question 22

Parent Function

Answer 22

the simplest function for all the family of functions
Constant -> f(x)=
Linear-> f (x)=x
Absolute value -> f(x)=IxI
Quadratic ->f (x) = x2

Question 23

Piecewise Function

Answer 23

A system of equation; each has its own domain

Question 24

Point-Slope Form

Answer 24

y-y1=m(x-x1). M is the slope and (x1,y1) is a point on the line. The graph looks like a line with a slope and passes through the point

Question 25

Pure Imaginary Number

Answer 25

0+bi, b does not equal 0

Question 26

Quadratic Equation in One Variable

Answer 26

equation on one variable that can be written as ax2 +bx+c=0

Question 27

Quadratic Formula

Answer 27

if ax2 +bx +c=0 where a does not equal 0 then that equals the quadratic equation.

Question 28

Radicand

Answer 28

The number beneath the radical sign

Question 29

Range

Answer 29

The set of all output values (y)

Question 30

Rationalizing the Denominator

Answer 30

The process of eliminating a radical from the denominator of a fraction. Rewrite the denominator as a radical/number

Question 31

Reciprocal

Answer 31

The reciprocal of b is written as 1/b. multiplication inverse

Question 32

Relation

Answer 32

any mapping/pairing of input and output values

Question 33

Scatter Plot

Answer 33

A graph of a set of data points

Question 34

Slope

Answer 34

Nonvertical line. The ration of the vertical change (rise) to horizontal change (run)= rise/run.

Question 35

Slope-Intercept Form

Answer 35

y=mx+b. the graph is a line with slope (m) and y-int.

Question 36

Solution of a System of Linear Equations in Two Variables

Answer 36

An ordered pair that satisfies the equation (x,y)

Question 37

Standard Form of a Linear Equation

Answer 37

Ax+By=C. A,B, and C are not decimals or fractions. A and B are not 0. A is not negative. Graph by rewriting in slope-int form.

Question 38

Vertex of a Parabola

Answer 38

The lowest or highest point on a parabola is the vertex. AOS passes through the vertex

Question 39

x-intercept

Answer 39

where graph intercepts the x axis (x,0)

Question 40

y-intercept

Answer 40

where graph intercepts y axis (0,y)