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Slide 1

Introductory Algebra Glossary

Chapter Ten

Slide 2

A quadratic equation is an equation that can be written in the form ax2 + bx + c = 0, where a, b, and c are real numbers, with a 0.

Slide 3

The quantity under the radical in the quadratic formula, b2 - 4ac.

Slide 4

Any number that can be written in the form a + bi, where a and b are real numbers.

Slide 5

A complex number a + bi

with b 0.

Slide 6

The real part of a complex

number a + bi is a.

Slide 7

The imaginary part of the

complex number a + bi is b.

Slide 8

The standard form of a

complex number is a + bi.

Slide 9

The conjugate of a complex

number a + bi is a - bi.

Slide 10

The graph of a second-degree (quadratic) equation in two variables is called a parabola.

Slide 11

parabola

The graph of a second-degree (quadratic) equation in two variables is called a parabola.

Slide 12

The axis of a parabola is the vertical or horizontal line through the vertex of the parabola.

Slide 13

A function defined by an equation of the form f(x) = ax2 + bx + c, for real numbers a, b, and c, with a 0.

Slide 14

Return to Introductory Algebra

Created by

James Q. Jacobs

Superstition Mountain Campus

Central Arizona College

- Quadratic equation
- Discriminant
- Complex number
- Imaginary number
- Real part
- Imaginary part
- Standard form of a complex number
- Conjugate of a complex number
- Parabola
- Axis (axis of symmetry)
- Quadratic function

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