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# Linear Functions and Equations Exercises

### Example 1

Is the following graph a linear function?

### Example 2

Is the following graph a linear function?

### Example 3

Is the following graph a linear function?

### Example 4

Is the following graph a linear function?

### Example 5

Is the following graph a linear function?

### Example 6

Determine whether the following is a linear equation: 4x + 2y = 5.

### Example 7

Determine whether the following is a linear equation: x = 4.

### Example 8

Determine whether the following is a linear equation: x2 + y2 = 4.

### Example 9

Graph the following linear equation: y = -1.

### Example 10

Graph the following linear equation: x = -1.

### Example 11

Graph the following linear equation: y = -3x – 1.

### Example 12

Graph the following linear equation: y = 2x – 3.

### Example 13

Graph the following linear equation: y = -x + 5.