Precalc Unit 2 Quiz 1

What is the value of f(0)?

• -2
• 2
• 4
• 0

If f(x)=6x²-4,
what is f(-1)?

• -2
• 13
• 2
• 0

Given f(x) = -4x - 10 and f(x) = 10. Find x

• x = -5

• x = 5

• x = -50

• x = 30

What is the value of x when f(x) = 16?

• x = 4 only

• x = 4 and x = 8

• x = 16

• Not on the graph

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

Is this graph a function or not a function? 

• Function 
• Not a Function 

• Function
• Not a Function

Identify the domain:
f(x) = x² + 4x + 3

• [3, oo)
• (-oo, 3]
• x ≠ 3
• (-oo, oo)

Identify the domain:
f(x) = x² - 1

• (-oo, -1) U (1, oo)
• x ≠ -1, 1
• (-oo, oo)
• [-1, oo)

Identify the domain:
f(x) = √x

• (-oo, oo)
• [0, oo)
• (0, oo)
• x ≠ 0