Question

蘇

請問第21跟23題怎麼算？

erlei
35
Range
+
10. x - xy + y + 1 = U
x
2
3
4
x
+
3
3
2 +
Finding the Domain and Range of a
Function In Exercises 17-24, find the domain
and range of the function. Use a graphing
utility to verify your results. See Example 2.
-
. r = bylo
No
=
>
-
=
-
X
1
=
-
X
1
2
-
=
=
-1
–
>
18. f(x) = 5x3 + 6x2 – 1
17. f(x) = - x2 – 2x + 3
lxl Domain: (0o,0) 0 (0,00)
19. f(x) =
20. f(x)
Ranga : y=-/or Zo: 1 X – 9
(x - 5, x 20
V 21. f(x) =
3x + 2, x < 0
22. f(x) =
(3x – 5, x < 0
2 - x, x 20
23. f(x) =
X – 2
x2
x + 4
Domain : (-00,oo
1
Domain :(to ,-4) U(-4,00)
Rango: (+60, 120 (1,00)
=
=
24. f(x)
x4 V
x
Range: (-os, as)