Math Problem Solver

21. Graph the following equations and explain why they are not

graphs of functions of x.

a. b.

22. Graph the following equations and explain why they are not

graphs of functions of x.

a. b.

Piecewise-Defined Functions

Graph the functions in Exercises 23–26.

23.

24.

25.

26.

27. Find a formula for each function graphed.

a. b.

t

y

0

2

4 1 2 3 x

y

0

1

2

(1, 1)

Gsxd = e

1

x

>

, 0

x, x 6

…

0

x

Fsxd = e

3

2x

-

,

x, x

x

…

7

1

1

gsxd = e

1

2

-

-

x

x

, 0

, 1

…

6

x

x

…

…

1

2

ƒsxd = e

x

2

, 0

- x, 1

…

6

x

x

…

…

1

2

ƒ x + y ƒ = 1 ƒ x ƒ + ƒ y ƒ = 1

y 2 = x2 ƒ y ƒ = x