Practice!

Sample Problem

Fill out the following table if f(x)=3-x (keep all non-integer answers in reduced fraction form)

 

x

-3

-2

-1

0

1

2

3

f(x)

 

Does A, B, C or D accurately represent f(x)? (type your answer, A, B, C, or D in the blank)

Solution

F(x)=3-x, plug all the x-values in

 

x

-3

-2

-1

0

1

2

3

f(x)

27

9

3

1

1/3

1/9

1/27

 

As x gets larger, the y (or f(x)) values are getting smaller and smaller but they do not seem to

go below the x-axis (or below 0), the graph that represents the function f is A.