and
y=x^2 − 2 x− 2
Bold numerals indicate the real solution we found when we worked out Prob. 5 in Chap. 27.
- See Fig. C-6. Each horizontal increment is 1 unit. Each vertical increment is 4 units.
- See Table C-5, which shows selected values for the functions
y=−x^2
and
y= 2 x^3
Bold numerals indicate the real solution we found when we worked out Prob. 7 in Chap. 27.
x
y
(–1,1)
Figure C-6 Illustration for the solution
to Prob. 6 in Chap. 28.
Table C-5. Solution to Prob. 7 in Chap. 28.
x −x^22 x^3
− 3 − 9 − 54
− 2 − 4 − 16
− 1 − 1 − 2
0 0 0
1 −1 2
2 −4 16
3 −9 54
Chapter 28 711
