This is a relation such that for each element of the domain there exists exactly one element in the range.

(a)  

This is where the function f(x) is read as “f of x” and indicates that x is the input and f(x) is the output.

(a)  

This is written as $$f\left(x\right)=ax^2+bx+c$$  ,

where a does not equal 0.

(a)  

This is written as $$f\left(x\right)=a\left(x-r_1\right)\left(x-r_2\right)$$  ,

where a does not equal 0.

(a)  

This is written as $$f\left(x\right)=a\left(x-h\right)^2+k$$  ,

where a does not equal 0.

(a)  

This describes whether a parabola opens up or opens down.

(a)  

This equation, $$x=\frac{-b\pm\sqrt[]{b^2-4ac}}{2a}$$  ,

can be used to calculate the solutions to any quadratic equation of the form $$ax^2+bx+c=0$$  , where a, b and c represent real numbers and a $$\ne$$ 0.

(a)  

This is a number such that i² = -1.

(a)  

This is used to find the square root of a negative number.

(a)  

Functions and equations that have imaginary solutions have (a)   ,

which are the solutions.

Imaginary roots are the same as (a)   .

Imaginary zeroes are the same as (a)   .

This is the set of all numbers written in the form

a + bi, where a and b are real numbers.

(a)  

In the set of all numbers written in the form

a + bi, where a and b are real numbers.

The term a is called this.

(a)  

In the set of all numbers written in the form

a + bi, where a and b are real numbers.

The term bi is called this.

(a)  

This is a subset of the set of complex numbers.

(a)  

This states that any polynomial equation of degree n must have, exactly n complex roots or solutions.

(a)