Chapter 7 Test: 7.1-7.3

• direct

• inverse

• neither

• direct

• inverse

• neither

Tell whether x and y show direct variation, inverse variation, or neither.

• direct

• inverse

• neither

Tell whether x and y show direct variation, inverse variation, or neither.

• direct

• inverse

• neither

Determine when the function is positive, negative, increasing, or decreasing.

Hint: Ride the X-Train if you are unsure.

• The function is decreasing.

  Pos. x < -6 or x > -5

  Neg. -6 < x < -5

• The function is increasing.

  Pos. x < -6 or x > -5

  Neg. -6 < x < -5

• The function is decreasing.

  Pos. -6 < x < -5

  Neg. x < -6 or x > -5

• The function is increasing.

  Pos. -6 < x < -5

  Neg. x < -6 or x > -5

Match the following

• Inverse

• Neither

• Direct

Mathematical Equivalence

ON

Organize these options into the right categories

Groups:

(a) Vegetables

,

(b) Fruits

,

(c) Dairy

,

(d) Protein

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