Higher Engineering Mathematics

FUNCTIONS AND THEIR CURVES 205

C

x−

3

2 x

+^1

y =

x = −

12

y =

12

x−

3

2 x

+^1

y =

−^8

−^6

−^4

−^2

−10 1

2

468

x

y 6 4 2

−^4 −^6

Figure 19.33