Name: College Algebra
Author: Blitzer
ISBN: 9780136970514

Ch. 3 - Polynomial and Rational Functions

뒤로

모든 교과서

Blitzer 8th Edition

Ch. 3 - Polynomial and Rational Functions

Section 3.1

문제 1

The graph of a quadratic function is given. Write the function's equation, selecting from the following options.

$f (x) = (x + 1)^{2} - 1$

$h (x) = (x - 1)^{2} + 1$

문제 3

The graph of a quadratic function is given. Write the function's equation, selecting from the following options.

$f (x) = (x + 1)^{2} - 1$

$h (x) = (x - 1)^{2} + 1$

문제 5

The graph of a quadratic function is given. Write the function's equation, selecting from the following options.

$f (x) = x^{2} + 2 x + 1$

$h (x) = x^{2} - 1$

문제 7

The graph of a quadratic function is given. Write the function's equation, selecting from the following options.

$f (x) = x^{2} + 2 x + 1$

$h (x) = x^{2} - 1$

문제 9

Find the coordinates of the vertex for the parabola defined by the given quadratic function. f(x)=2(x−3)²+1

문제 11

Find the coordinates of the vertex for the parabola defined by the given quadratic function. f(x)=−2(x+1)²+5

문제 13

Find the coordinates of the vertex for the parabola defined by the given quadratic function. f(x)=2x²−8x+3

문제 15

Find the coordinates of the vertex for the parabola defined by the given quadratic function. f(x)=−x²−2x+8

문제 17

Use the vertex and intercepts to sketch the graph of each quadratic function. Give the equation of the parabola's axis of symmetry. Use the graph to determine the function's domain and range. f(x)=(x−4)²−1

문제 19

문제 21

문제 23

문제 25

문제 27

문제 29

문제 31

문제 33

In Exercises 17–38, use the vertex and intercepts to sketch the graph of each quadratic function. Give the equation of the parabola's axis of symmetry. Use the graph to determine the function's domain and range. f(x)=x²+6x+3

문제 35

문제 37

문제 39

An equation of a quadratic function is given. a) Determine, without graphing, whether the function has a minimum value or a maximum value. b) Find the minimum or maximum value and determine where it occurs. c) Identify the function's domain and its range. f(x)=3x²−12x−1

문제 41

문제 43

문제 45

Give the domain and the range of each quadratic function whose graph is described. The vertex is and the parabola opens up.

문제 47

Give the domain and the range of each quadratic function whose graph is described. Maximum = -6 at x = 10

문제 49

Write an equation in vertex form of the parabola that has the same shape as the graph of f(x) = 2x² but with the given point as the vertex. (5, 3)

문제 51

Write an equation in vertex form of the parabola that has the same shape as the graph of f(x) = 2x² but with the given point as the vertex. (−10, −5)

문제 53

Write an equation in vertex form of the parabola that has the same shape as the graph of f(x) = 3x² or g(x) = -3x², but with the given maximum or minimum. Maximum = 4 at x = -2

문제 55

Write an equation in vertex form of the parabola that has the same shape as the graph of f(x) = 3x² or g(x) = -3x², but with the given maximum or minimum. Minimum = 0 at x = 11

문제 107

Exercises 107–109 will help you prepare for the material covered in the next section. Factor: x³+3x²−x−3

문제 109

Exercises 107–109 will help you prepare for the material covered in the next section. Determine whether f(x)=x⁴−2x²+1 is even, odd, or neither. Describe the symmetry, if any, for the graph of f.