Function Notation

1

100

Solve f(x) = x + 3 for 4 as x.

4+3= 7

200

Solve f(x) = 2x for x as 8

2(8) =16

300

Solve f(x) = 2x + 3 for x as 10

2(10) + 3

20 + 3= 23

400

Solve f(x) = 12 + x/4 for x as 20

12 + (20)/4

12 + 5 =17

500

Solve f(x) = x(2 + 5) - 16 for x as 10

10(2 +5) - 16

10(7) - 16

70 - 16 =54

2

100

Solve f(X) = x - 2 for x as 5.

5 - 2 =3

200

Solve f(x) for -6x for x as 6

-6(6)= -36

300

Solve f(x) = -9x - 2 for x as 5

-9(5) - 2

-45 - 2 =-47

400

Solve f(x) = -17 + x/2.1 for x as 5.7

-17 + (5.7)/2.1

-17 + 2.71 = -14.29

500

Solve f(x) = 5(x - 15) + 3 for x as 12

5 (12 - 15) + 3

5 (-3) + 3

-15 + 3 =-12

3

100

Solve for f(x) = 12 + x for x = 5.7

12 + 5.7 = 17.7

200

Solve f(x) = -10x for x as -4

-10(-4)= 40

300

Solve f(x) = 20 + 6x for x as 3

20 + 6(3)

20 + 18 =38

400

Solve f(x) = 12/x + 3 for x as 2

12/(2) + 3

6 + 3= 9

500

Solve f(x) = 30 + x(-2 - 16) for x as 5.7

30 + 5.7(-2 - 16)

30 + 5.7(-18)

30 - 102.6 = -72.6

4

100

Find f(g(3)) 

f(x) = x² - 7

g(x)= -2x

29

200

Find g(f(0))

f(x) = x² - 7

g(x)= -2x

14

300

Find and simplify h(f(x))

f(x) = 2x - 1

h(x) = -5x + 2

-10x + 7

400

Find and simplify h(f(x))

f(x) = x -7

h(x) = x² + 4

x² -14x + 53

500

Find and simplify f(g(x))

f(x) = 3x² - 2x

g(x) = x + 1

3x² + 4x + 1

5

100

Find the x value where f(x) = 17

f(x) = -5 + 2x

x=11

200

Find the x value where f(x) = -32

f(x) = 12 - 11x

x = 4

300

Find the x value where f(x) = 36

f(x) = x²

x = 6, -6

400

Find the x value where f(x) = 57

f(x) = 2x² + 7

x = 5, -5

500

Find the x value where f(x) = 128

f(x) = -x³ + 3

x = -5