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Tell whether each equation represents direct variation. If so, identify the constant of variation.

1. y = 8x
2. y = 2x + 1
3. 3x + y = 6

Respuesta :

mathstudent55

Answer:

1. yes, 8

2. no

3. no

Step-by-step explanation:

The equation for direct variation has the form

y = kx,

where k is the constant of variation.

1. y = 8x

direct variation; constant of variation = 8

2. y = 2x + 1

not direct variation

3. 3x + y = 6

y = -3x + 6

not direct variation

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