Name: College Algebra
Author: Blitzer
ISBN: 9780136970514

Ch. 2 - Functions and Graphs

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Blitzer 8th Edition

Ch. 2 - Functions and Graphs

Section 2.1

문제 80

In Exercises 77–92, use the graph to determine a. the function's range; b. the y-intercept, if any; and e. the missing function values, indicated by question marks, below each graph.

문제 81

In Exercises 77–92, use the graph to determine a. the function's domain; b. the function's range; c. the x-intercepts, if any; d. the y-intercept, if any; and e. the missing function values, indicated by question marks, below each graph.

문제 84

문제 85

문제 87

문제 88

문제 89

문제 90

문제 91

문제 92

문제 93

Let f(x) = x² − x + 4 and g(x) = 3x – 5. Find g (1) and f(g(1)).

문제 95

Let f and g be defined by the following table: Find $\sqrt{f (- 1) - f (0)} - [g (2)]^{2} + f (- 2) \div g (2) \cdot g (- 1) .$

문제 134

Simplify: $2 (x + h)^{2} + 3 (x + h) + 5 - (2 x^{2} + 3 x + 5)$ .

Section 2.3

문제 1

Find the slope of the line passing through each pair of points or state that the slope is undefined. Then indicate whether the line through the points rises, falls, is horizontal, or is vertical. (4, 7) and (8, 10)

문제 3

문제 6

문제 11

Use the given conditions to write an equation for each line in point-slope form and slope-intercept form. Slope = 2, passing through (3, 5)

문제 24

Use the given conditions to write an equation for each line in point-slope form and slope-intercept form. Slope = - 3/5, passing through (10, −4)

문제 28

Use the given conditions to write an equation for each line in point-slope form and slope-intercept form. Passing through (-2, 0) and (0, 2)

문제 30

Use the given conditions to write an equation for each line in point-slope form and slope-intercept form. Passing through (−2, −4) and (1, −1)

문제 32

Use the given conditions to write an equation for each line in point-slope form and slope-intercept form. Passing through (−3, 6) and (3, −2)

문제 37

Use the given conditions to write an equation for each line in point-slope form and slope-intercept form. x-intercept = -1/2 and y-intercept = 4

문제 41

In Exercises 39–48, give the slope and y-intercept of each line whose equation is given. Then graph the linear function. f(x) = -2x+1

문제 43

Give the slope and y-intercept of each line whose equation is given. Then graph the linear function. f(x) = (3/4)x-2

문제 46

Give the slope and y-intercept of each line whose equation is given. Then graph the linear function. y = -2x/5+6

문제 49

Graph each equation in a rectangular coordinate system. y = -2

문제 57

Graph each equation in a rectangular coordinate system. 3x -18=0

문제 60

In Exercises 59-66, a. Rewrite the given equation in slope-intercept form. b. Give the slope and y-intercept. c. Use the slope and y-intercept to graph the linear function. 4x+y-6=0

문제 63

In Exercises 59-66, a. Rewrite the given equation in slope-intercept form. b. Give the slope and y-intercept. c. Use the slope and y-intercept to graph the linear function. 8x – 4y – 12 =0

문제 68

Use intercepts to graph each equation. 6x-9y-18 = 0