Evaluating Functions

Evaluate Function 1

100

Evaluate f(x) = x + 5, when f(10)

f(x) = 15

200

Evaluate f(x) = 3x - 2, when f(5)

f(x) = 13

300

Evaluate f(x) = 2x - 6, when f(-10)

f(x) = -26

400

Evaluate g(x) = x² + 5, when g(2)

f(x) = 9

500

Evaluate g(x) = x² - 10, when g(-5)

f(x) = 15

Evaluate Function 2

100

f(x) = x³ + 4,  Evaluate f(1)

f(1) = 5

200

g(x) = 2x - 12  Evaluate g(-2)

g(x) = -16

300

f(x) = x³ + 4. Evaluate f(-2)

f(x) = -4

400

h(x) = (x-1)² Evaluate h(-3)

h(x) = 16

500

h(x) = x² - 2x + 3 Evaluate h(-3)

h(x) = 18

Simplifying Functions

100

f(x) = 2x + 1 Find f(x-1)

f(x-1) = 2x-1

200

f(x) = -4x - 2 

Find f(-x).

f(-x) = 4x-2

300

f(x) = x² + 1 Find -f(x).

-f(x) = -x²-1

400

g(x) = x² - 10 Find g(x²)

g(x²) = x⁴ - 10

500

g(x) = x² + 5 Find g(x-2)

g(x-2) = x²-4x+9