Alg 2 Vocab chapters 1-3

Question 1

Compression

Answer 1

A transformation that pushed the points of a graph horizontally towards the y-axis or vertically to the x-axis

Question 2

Correlation

Answer 2

A measure of the strength and direction of the relationship between two variables

Question 3

Line of best fit

Answer 3

The line that comes closest to all of the points in a data set

Question 4

Parent Function

Answer 4

The simplest function with the defining characteristics of the family. Functions in the same family are transformations of their parent function.

Question 5

Reflection

Answer 5

A transformation that reflects or “flips” a graph or figure across a line, called the line of reflection. Each reflected point is the same distance from the line but on the opposite side.

Question 6

Stretch

Answer 6

A transformation that pulls the points of a graph horizontally away from the y-axis or vertically away from the x-axis

Question 7

Translation

Answer 7

A transformation that shifts or slides every points of a figure or graph the same distance in the same direction

Question 8

Transformation

Answer 8

A change in the position, size, or shape of a figure or graph

Question 9

Axis of Symmetry

Answer 9

A line that circles a plane figure or a graph into two congruent reflected halves

Question 10

Binomial

Answer 10

A polynomial with two terms.

X+Y or 2a^2+3

Question 11

Complete the Square

Answer 11

A process used to form a perfect square trinomial, to complete the square of x^2+bx, add (b/2)^2

Question 12

Complete Conjugate

Answer 12

The complex conjugate of any complex number

Question 13

Complex Number

Answer 13

Any number that can be written as a+bi, where a+b are real numbers and i=square root of -1

Question 14

Complex Plane

Answer 14

A set of coordinate axes in which the horizontal axis is the real axis and the vertical axis is the imaginary axis, used to graph complex numbers

Question 15

Discriminant

Answer 15

The discriminant of the quadratic equation ax^2+bx+c=0 is b^2-4ac

Question 16

Imaginary #

Answer 16

The square root of a negative number, written in the form bi where b is a real number and i is the imaginary unit square root of -1

Question 17

Imaginary Part

Answer 17

For complex number of the form a+bi, the real number b is called the imaginary part, represented graphically as b units on the imaginary axis of a complex plane

Question 18

Max value

Answer 18

The y-value of the highest point on the graph

Question 19

Min value

Answer 19

the y-value of the lowest point on the graph

Question 20

Parabola

Answer 20

The shape on the graph of a quadratic function

Question 21

Quadratic Function

Answer 21

A function that can be written in the form f(x)=ax^2+bx+c or in the form f(x)=a(x-h)^2+k

Question 22

Quadratic inequality

Answer 22

Inequalities that are y>(or equal to) ax^2+bx+c, y>ax^2+bx+c, y>ax^2+bx+c, y<(or equal to)ax+bx+c

Question 23

Real Part

Answer 23

For a complex number of the form a+bi, a is the real part

Question 24

Root of an equation

Answer 24

Any value of the variable that makes the equation true

Question 25

Standard Form

Answer 25

ax^2+bx+c=0

Question 26

Trinomial

Answer 26

A polynomial with 3 terms

Question 27

Vertex Form

Answer 27

f(x)=a(x-h)^2+k, (h,k) is the vertex

Question 28

Vertex of a parabola

Answer 28

The highest or lowest point on a parabola

Question 29

Zero of a function

Answer 29

for the function of f, any number x such that f(x)=0

Question 30

Degree of a monomial

Answer 30

The sum of the exponents of the variables in the monomial

Question 31

Degree of a polynomial

Answer 31

The degree of the term of the polynomial with the greatest degree

Question 32

Leading Coefficient

Answer 32

The coefficient of the first term of a polynomial in standard form