Ch 4 Vocab

Question 1

Two complex numbers of the form a+bi and a-bi

Answer 1

Complex conjugates

Question 2

Any number that can be written in the form a+bi, where a and b are real numbers and i is the imaginary unit

Answer 2

Complex numbers

Question 3

In f(x)=ax^2+bx+c, what is the term for c

Answer 3

Constant term

Question 4

In the quadratic formula the expression b^2-4ac

Answer 4

Discriminate

Question 5

i; or the principal square root of -1

Answer 5

Imaginary unit

Question 6

In the equation f(x)=ax^2+bx+c, what is the term for bx

Answer 6

Linear term

Question 7

The Y coordinate of the vertex of a quadratic function f(x)=ax^2+bx+c, where a<0

Answer 7

Maximum value

Question 8

The coordinate of the vertex of the quadratic function f(x)=ax^2+bx+c, where a>0

Answer 8

Minimum value

Question 9

The square root of negative real numbers. For any positive real number b
Rad-b^2= rad b^2 x rad-1 or bi

Answer 9

Pure imaginary number

Question 10

A quadratic function set equal to a value in form, ax^2+bx+c=0, where a cannot =0

Answer 10

Quadratic equation

Question 11

The solutions of the quadratic equation of the form ax^2+bx+c=0, where a cannot =0
Which is -b+-rad b^2-4ac/2a

Answer 11

Quadratic formula

Question 12

In the equation f(x)=ax^2+bx+c, what is the term for ax^2

Answer 12

Quadratic term

Question 13

Solution of the quadratic equation

Answer 13

Roots

Question 14

A quadratic equation written in the form ax^2+bx+c=0, where a, b, & c are integers, and a cannot =0

Answer 14

Standard form

Question 15

The point at which the axis of symmetry intersects a parabola

Answer 15

Vertex

Question 16

A quadratic form where (H, K) is the vertex of the parabola and x=h is its axis of symmetry

Answer 16

Vertex from

Question 17

The X intercepts of the graph a function; the points for which f(x)=0

Answer 17

Zeros

Question 18

Process used to make a quadratic expression into a perfect square trinomial

Answer 18

Completing the square