- See Table C-3, which shows selected values for the functions
y=− 3 x+ 1
and
y= 2 x^2 − 3 x+ 3
There are no real solutions to this system, as we discovered when we worked out Prob. 3
in Chap. 27.
- See Fig. C-5. Each horizontal increment is 1 unit. Each vertical increment is 5 units.
- See Table C-4, which shows selected values for the functions
y=x^2 +x+ 1
Table C-2. Solution to Prob. 1 in Chap. 28.
x − 3 x+ 1 2 x^2 + 1
−3 10 19
−2 7 9
−3/2 11/2 11/2
or−1.5 or 5.5 or 5.5
−1 4 3
−1/2 5/2 3/2
or−0.5 or 2.5 or 1.5
0 1 1
1 −2 3
2 −5 9
x
y
(–3/2,11/2)
(0,1)
Figure C-4 Illustration for the solution to Prob. 2 in
Chap. 28.
Chapter 28 709
