Skip to main content

Exercises 9.8 Practice Problems

1.

Below is the graph of f(x).

What does the graph of g(x) look like if g(x)=f(x)+2?

2.

Below is the graph of f(x).

What does the graph of g(x) look like if g(x)=f(x)−3?

3.

Below is the graph of f(x).

What does the graph of g(x) look like if g(x)=f(x)+5?

4.

Suppose the solid blue graph below is the graph of f(x) and the red graph is the graph of g(x):

Write a formula for g(x) in terms of f(x).

Answer.

g(x)=f(x)−4

5.

Suppose the solid blue graph below is the graph of f(x) and the red graph is the graph of g(x):

Write a formula for g(x) in terms of f(x).

Answer.

g(x)=f(x)+3

6.

Suppose f(x)=x3−2x+1 and g(x) is the same as f(x) but shifted down by 3. Write a formula for g(x).

Answer.

g(x)=x3−2x−2

7.

Suppose f(x)=3x2 and g(x)=3x2−4. What transformations took f(x) to g(x)?

Answer.

Shift down by 4.

8.

Suppose f(x)=x2−3 and g(x) is the same as f(x) but shifted up by 1. Write a formula for g(x).

Answer.

g(x)=x2−2

9.

Suppose f(x)=3x+4 and g(x)=3x+8. What transformations took f(x) to g(x)?

Answer.

Shift up by 4.