Analyze Functional Relationships

Evaluate the function, f(x)=1/3x + 6, when x=3.

• y = 7

• y = 9

• y = 2

• y = 7/3

Is this graph a function or not a function? 

• Function 

• Not a Function

Evaluate f(-2) if f(x) = x+3

• -1

• 1

• 5

• -5

What is f(1)?

• 1

• 5

• 0

• 4

Consider the function:{(3,11),(4,18),(5,27),(6,38)}  What is the Domain?

• {4,11,5,18}

• {3,11,4,18}

• {3,4,5,6}

• {11,18,27,38}

Consider the function:{(3,11),(4,18),(5,27),(6,38)}  What is the Range?

• {4,11,5,18}

• {3,11,4,18}

• {3,4,5,6}

• {11,18,27,38}

Function g is defined: {(2,10),(3,12),(4,14),(5,16)}  What is the value g(4)?

• g(4) = 4

• g(4) = 16

• g(4) = 10

• g(4) = 14

Akiko is painting a room in her house. The graph shows the area Akiko has painted as a function of time. Which description is correct?

• For the first 2 hours, Akiko paints very quickly at first, but then slows down.

• For 2 < x < 3, Akiko paints at a constant rate.

• For 3 < x < 4, Akiko continues painting at the same rate.

• For the last 2 hours, Akiko paints at a constant rate, but much more slowly than earlier in the day.

Is the function increasing or decreasing from 2 < x < 6?

• Increasing

• Decreasing

Write the correct word in each blank to describe the function at the right.

When  4 < x < 6, the function _____ is at a _____ rate.

• increasing; constant

• increasing; varying

• decreasing; constant

• decreasing; varying