Direct variation

A direct variation represents a proportional relationship. Which table represents a direct variation?

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A direct variation represents a proportional relationship. Which describes a direct variation? Select All that apply.

• The dog eats 2 cups of food each day

• The tickets cost $8 per ticket plus tax

• Devin runs 5 mph

What is a direct variation?

• a linear relationship

• a proportional linear relationship

• a nonlinear relationship

A Direct variation is a proportional relationship. Which equations demonstrate proportions? Select All that apply.

• y = 2x

• y = 10x

• y = 3x + 1

• y = 1+5

Which tables show a direct variation?

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A direct variation uses a scale factor. Which applies a scale factor of 5?

• y = 1 + 5

• y = 5

• Y = - 5x

• y = 5x

A direct variation represents a proportional relationship. Which graphs represent a direct variation? Select All that apply.

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If y varies directly as x, when y = 10 and x = 2, what is y when x = 3?

• 11

• 12

• 15

• what?