Algebra II Functions Review

What is the definition of function?

• Has inputs and outputs
• Every input has only ONE output
• Inputs have different outputs every time
• x-values and y-values

What is f(6) for the function f(x)=3x-8

• -8

• 10

• -144

• answer not here

$f\left(x\right)=5x-12$ What is $f\left(-4\right)$

• -32

• -3

• -12

• 3

 $Given\ h\left(x\right)=x^2-4\ what\ is\ h\left(6\right)?$  

• 32

• 0

• -4

• 77

Give the range of the set of ordered pairs: (2, 11), (9, -3), (7, 21), (-8, 6)

• $\left\{-8,\ 2,\ 7.9\right\}$

• $\left\{-3,\ 6,\ 11,\ 21\right\}$

• $-8<x<9$

• $-3<y<21$

Which set of ordered pairs is not a function?

• (1, 3), (2, 7), (3, 8), (4, 11)

• (2, 3), (4, 9), (3, 8), (4, 15)

• (1, 2), (3, 5), (6, 9), (7, 11)

• (-9, 4), (-6, 3), (-2, 8), (0, 21)

What is the test to determine if a graph represents a function?

• Horizontal line test

• Vertical line test

• Heidelberg Uncertainty Test

• Obi Wan Kenobi Test

What is the range of the graph?

• $-2<f\left(x\right)<10$
  

• $-3<x<3$

• $-2\le f\left(x\right)\le10$

• $-3\le x\le3$

What is the domain of this graph?

• [-1,1]
• [-2,2]
• (-1,-2)
• (-∞,+∞)

What is the range of this graph?

• (-∞,+∞)
• (-2,2)
• (-1,1)
• [-2,2]