# Lesson 1 Growing Roots Develop Understanding

A direct variation function is written as

Identify whether the given equation represents a direct variation function. If it does, state the constant of variation

### 1.

Yes/no?

### 2.

Yes/no?

### 3.

Yes/no?

### 4.

Yes/no?

State whether or not each table represents a direct variation relationship.

If it does, write the equation in

### 5.

### 6.

### 7.

### 8.

### 9.

#### a.

Select all graphs that show a direct variation function.

#### A.

#### B.

#### C.

#### b.

Identify the features of a direct variation graph.

### 10.

Let

### 11.

The graph in problem 10 represents the square root function. Select all of the features that apply to the graph of the square root function. If you choose a feature that applies to the square root function, write the specific value(s) that describe the feature.

Maximum

Minimum

Domain

Range

Contiuous

Discrete

Interval of increase

Interval of decrease

Constant rate of change

Rate of change is constantly changing

### 12.

Explain why the domain of

### 13.

Four secant lines have been drawn on the graph of

Describe the transformation on each parabola. Then graph the function.

### 14.

Description:

### 15.

Description:

### 16.

Description:

### 17.

Description: