OpenStax Calculus Volume 1
vb vb vb Instructor Answer and Solution Guide
vb vb vb vb
Complete Chapter Solutions Manual are
vb vb vb vb vb
included (Ch 1 to 6)
vb vb vb vb
,OpenStax Calculus Volume 1 vb vb vb Instructor Answer and Solution Guide vb vb vb vb
Chapter 1 Function vb vb
s and Graphs
vb vb
1.1 Review of Functions vb vb
Section Exercises
vb
For the following exercises, (a) determine the domain and the range of each relation, and
vb vb vb vb vb vb vb vb vb vb vb vb vb vb
(b) state whether the relation is a function.
vb vb vb vb vb vb vb
1.
x y x y
–3 9 1 1
–2 4 2 4
–1 1 3 9
0 0
Answer: a. Domain = −3,−2,−1,0,1,2,3, range = 0,1,4,9b. Yes, a function 2.
vb vb vb vb vb vb vb vb vb vb vb vb vb vb
x y x y
–3 –2 1 1
–2 –8 2 8
–1 –1 3 –2
Answer:
0 a. Domain
0 = −3,
vb − 2,−1,0,1,2,3
vb , range = −2,−8,−1,0,1,8b. Yes, a function 3.
vb vb vb vb vb vb vb vb vb vb vb vb vb vb
x y x y
1 –3 1 1
2 –2 2 2
3 –1 3 3
Answer:
0 a. Domain
0 = 0,1,2,3
vb , range
vb = −3,−2,−1,0,1,2,3 b. No, not a function 4.
vb vb v b vb vb vb vb vb vb vb vb vb vb
x y x y
1 1 5 1
2 1 6 1
Answer: a. Domain = 1,2,3,4,5,6,7,range = 1 b. Yes, a function
3 1 7 1
vb vb vb
4 1
vb vb vb vb vb vb vb vb vb vb
,OpenStax Calculus Volume 1 vb vb vb Instructor Answer and Solution Guide vb vb vb vb
5.
x y x y
3 3 15 1
5 2 21 2
8 1 33 3
10 0
Answer: a. Domain = 3,5,8,10,15,21,33, range = 0,1,2,3b. Yes, a function 6.
vb vb vb vb vb vb vb vb vb vb vb vb
x y x y
–7 11 1 –2
–2 5 3 4
–2
–1 = −7,−2,0,1,3,6, range = −1,−2,1,4,5,11 b. No, not a function
1 6 11
Answer:
0 a. Domain vb vb vb vb vb vb v b vb vb vb vb vb vb vb vb
For the following exercises, find the values for each function, if they exist, then simplify.
vb vb vb vb vb vb vb vb vb vb vb vb vb vb
a. f (0) b. f (1) c. f (3) d. f (−x) e. f (a) f. f (a + h)
v b vb v b v b vb v b v b vb v b v b vb v b v b vb v b v b vb vb vb
7. f ( x ) =5x−2
vb vb vb vb vb
Answer: a. −2 b. 3 c. 13 d. −5x−2 e. 5a−2 f. 5a+5h−2
vb v b v b vb vb vb vb v b vb vb v b v b vb vb v b v b vb vb vb vb
8. f ( x ) = 4x2 −3x+1
vb vb vb vb vb vb
Answer: a. 1 b. 2 c. 28 d. 4x2 +3x+1 e. 4a2 −3a+1 f. 4a2 +8ah+ 4h2 −3a−3h+1
vb vb vb vb vb vb vb v b vb vb vb v b v b vb vb vb v b v b vb vb vb vb vb vb vb vb vb
2
9. f (x)=
v b vb vb v b
x
2 d. 2 2
−
v b
Answer: a. Undefined b. 2 c vb vb vb vb vb v b vb e v b f.
3 2 a+h vb vb
x a
10. f(x)= x−7 +8
vb vb v b vb vb vb vb
Answer:a. 15 b. 14 c. 12 d. −x−7 +8 e. a−7 +8 f. a+h−7 +8
vb vb v b vb vb vb vb v b vb vb vb vb vb v b vb vb vb vb v b v b vb vb vb vb vb vb
11. f (x)=
vb vb vb 6x+5 vb vb
Answer: a. vb 5 b. 11 c. 23 d. −6x+5 e. vb vb 6a+5 f. vb vb 6a+6h+5 vb vb vb vb
x−2
f (x)=
vb vb
12.
3x + 7
vb vb vb
vb vb
2 b. − 1 c. 1 x+ 2 a−2 a + h −2
Answer: a. − 16 d. −
vb v b vb vb vb v b v b vb vb vb vb v b
vb vbvb
e.
vb vb vb vb vb v b
f. vb
7 −3x 3a+ 7 3a + 3h + 7
vb vb vb
7 10 vb vb vb vb
vb vb vb vb
, OpenStax Calculus Volume 1 vb vb vb Instructor Answer and Solution Guide
vb vb vb vb
13. f ( x ) =9 vb vb vb
Answer: a. 9 b. 9 c. 9 d. 9 e. 9 f. 9
vb vb vb vb vb vb vb vb vb vb vb vb
For the following exercises, find the domain, range, and all zeros/intercepts, if any, of the functions
vb vb vb vb vb vb vb vb vb vb vb vb vb vb vb
.
x
14. f (x )=
x −16
vb vb vb
2
vb
Answer: x 4;all real numbers; = 0;y = 0 vb vb vb vb vb v b vb vb vb vb
15. g (x) = vb vb vb 8x−1 vb
1 1
Answer: x ; y 0;x = ; no y-intercept
vb vb
vb vb vb vb vb vb vb vb v b vb
8 8
3
16. h(x) =
x +4
vb vb vb
2
vb vb
3 3
Answer: All real numbers;0 y ; no x-intercept; y=
vb
vb vb vb vb vb v b vb v b vb vb vb v b
4 4
17. f (x)= −1+
vb vb vb vb x+2 vb vb
Answer: x −2;y −1;x = −1;y = −1+ vb vb vb vb vb vb vb vb vb vb vb 2
1
18. f (x)=
x−9
v b vb vb
vb vb
Answer: x 9; y 0; no intercepts vb vb vb vb vb vb
3
19. g (x) =
x− 4
vb vb vb
vb vb
3
Answer: x 4; y 0; no x-intercept; y=−
vb
vb vb
vb vb vb vb vb vb vb vb
4
20. f(x)=4 x+5vb vb vb vb vb vb
Answer: All real numbers; y 0;x = −5; y = 20
vb vb vb vb vb vb vb vb vb vb vb
7
21. g( x ) =
x−5
vb vb
vb vb
Answer: x 5; y 0; no intercepts vb vb vb vb vb v b vb
vb vb vb Instructor Answer and Solution Guide
vb vb vb vb
Complete Chapter Solutions Manual are
vb vb vb vb vb
included (Ch 1 to 6)
vb vb vb vb
,OpenStax Calculus Volume 1 vb vb vb Instructor Answer and Solution Guide vb vb vb vb
Chapter 1 Function vb vb
s and Graphs
vb vb
1.1 Review of Functions vb vb
Section Exercises
vb
For the following exercises, (a) determine the domain and the range of each relation, and
vb vb vb vb vb vb vb vb vb vb vb vb vb vb
(b) state whether the relation is a function.
vb vb vb vb vb vb vb
1.
x y x y
–3 9 1 1
–2 4 2 4
–1 1 3 9
0 0
Answer: a. Domain = −3,−2,−1,0,1,2,3, range = 0,1,4,9b. Yes, a function 2.
vb vb vb vb vb vb vb vb vb vb vb vb vb vb
x y x y
–3 –2 1 1
–2 –8 2 8
–1 –1 3 –2
Answer:
0 a. Domain
0 = −3,
vb − 2,−1,0,1,2,3
vb , range = −2,−8,−1,0,1,8b. Yes, a function 3.
vb vb vb vb vb vb vb vb vb vb vb vb vb vb
x y x y
1 –3 1 1
2 –2 2 2
3 –1 3 3
Answer:
0 a. Domain
0 = 0,1,2,3
vb , range
vb = −3,−2,−1,0,1,2,3 b. No, not a function 4.
vb vb v b vb vb vb vb vb vb vb vb vb vb
x y x y
1 1 5 1
2 1 6 1
Answer: a. Domain = 1,2,3,4,5,6,7,range = 1 b. Yes, a function
3 1 7 1
vb vb vb
4 1
vb vb vb vb vb vb vb vb vb vb
,OpenStax Calculus Volume 1 vb vb vb Instructor Answer and Solution Guide vb vb vb vb
5.
x y x y
3 3 15 1
5 2 21 2
8 1 33 3
10 0
Answer: a. Domain = 3,5,8,10,15,21,33, range = 0,1,2,3b. Yes, a function 6.
vb vb vb vb vb vb vb vb vb vb vb vb
x y x y
–7 11 1 –2
–2 5 3 4
–2
–1 = −7,−2,0,1,3,6, range = −1,−2,1,4,5,11 b. No, not a function
1 6 11
Answer:
0 a. Domain vb vb vb vb vb vb v b vb vb vb vb vb vb vb vb
For the following exercises, find the values for each function, if they exist, then simplify.
vb vb vb vb vb vb vb vb vb vb vb vb vb vb
a. f (0) b. f (1) c. f (3) d. f (−x) e. f (a) f. f (a + h)
v b vb v b v b vb v b v b vb v b v b vb v b v b vb v b v b vb vb vb
7. f ( x ) =5x−2
vb vb vb vb vb
Answer: a. −2 b. 3 c. 13 d. −5x−2 e. 5a−2 f. 5a+5h−2
vb v b v b vb vb vb vb v b vb vb v b v b vb vb v b v b vb vb vb vb
8. f ( x ) = 4x2 −3x+1
vb vb vb vb vb vb
Answer: a. 1 b. 2 c. 28 d. 4x2 +3x+1 e. 4a2 −3a+1 f. 4a2 +8ah+ 4h2 −3a−3h+1
vb vb vb vb vb vb vb v b vb vb vb v b v b vb vb vb v b v b vb vb vb vb vb vb vb vb vb
2
9. f (x)=
v b vb vb v b
x
2 d. 2 2
−
v b
Answer: a. Undefined b. 2 c vb vb vb vb vb v b vb e v b f.
3 2 a+h vb vb
x a
10. f(x)= x−7 +8
vb vb v b vb vb vb vb
Answer:a. 15 b. 14 c. 12 d. −x−7 +8 e. a−7 +8 f. a+h−7 +8
vb vb v b vb vb vb vb v b vb vb vb vb vb v b vb vb vb vb v b v b vb vb vb vb vb vb
11. f (x)=
vb vb vb 6x+5 vb vb
Answer: a. vb 5 b. 11 c. 23 d. −6x+5 e. vb vb 6a+5 f. vb vb 6a+6h+5 vb vb vb vb
x−2
f (x)=
vb vb
12.
3x + 7
vb vb vb
vb vb
2 b. − 1 c. 1 x+ 2 a−2 a + h −2
Answer: a. − 16 d. −
vb v b vb vb vb v b v b vb vb vb vb v b
vb vbvb
e.
vb vb vb vb vb v b
f. vb
7 −3x 3a+ 7 3a + 3h + 7
vb vb vb
7 10 vb vb vb vb
vb vb vb vb
, OpenStax Calculus Volume 1 vb vb vb Instructor Answer and Solution Guide
vb vb vb vb
13. f ( x ) =9 vb vb vb
Answer: a. 9 b. 9 c. 9 d. 9 e. 9 f. 9
vb vb vb vb vb vb vb vb vb vb vb vb
For the following exercises, find the domain, range, and all zeros/intercepts, if any, of the functions
vb vb vb vb vb vb vb vb vb vb vb vb vb vb vb
.
x
14. f (x )=
x −16
vb vb vb
2
vb
Answer: x 4;all real numbers; = 0;y = 0 vb vb vb vb vb v b vb vb vb vb
15. g (x) = vb vb vb 8x−1 vb
1 1
Answer: x ; y 0;x = ; no y-intercept
vb vb
vb vb vb vb vb vb vb vb v b vb
8 8
3
16. h(x) =
x +4
vb vb vb
2
vb vb
3 3
Answer: All real numbers;0 y ; no x-intercept; y=
vb
vb vb vb vb vb v b vb v b vb vb vb v b
4 4
17. f (x)= −1+
vb vb vb vb x+2 vb vb
Answer: x −2;y −1;x = −1;y = −1+ vb vb vb vb vb vb vb vb vb vb vb 2
1
18. f (x)=
x−9
v b vb vb
vb vb
Answer: x 9; y 0; no intercepts vb vb vb vb vb vb
3
19. g (x) =
x− 4
vb vb vb
vb vb
3
Answer: x 4; y 0; no x-intercept; y=−
vb
vb vb
vb vb vb vb vb vb vb vb
4
20. f(x)=4 x+5vb vb vb vb vb vb
Answer: All real numbers; y 0;x = −5; y = 20
vb vb vb vb vb vb vb vb vb vb vb
7
21. g( x ) =
x−5
vb vb
vb vb
Answer: x 5; y 0; no intercepts vb vb vb vb vb v b vb