Unit 1 Pt 2 Quiz on Variations

Classify the proportion as a Direct Variation or an Inverse Variation or neither

A) D = 4t

• Direct variation

• Inverse Variation

• Neither

Find the constant of variation (k), and the direct-variation equation,

if y varies directly as x and y = –84 when x = –12.

• k = 12

• k = 4

• k = -4

• k = 7

Classify the proportion as a Direct Variation or an Inverse Variation or neither

A) y = 35 / x

• Direct variation

• Inverse Variation

• Neither

Classify the proportion as a Direct Variation or an Inverse Variation or neither

A) M = 8x + 7

• Direct variation

• Inverse Variation

• Neither

If y varies inversely as x, and y = 10 when x = 5, find y when x = 8.

• 7.5

• 5

• 12.5

• 6.25

If y varies directly as x, and y = 15 when x = 3, find y when x = 6.

• 20

• 10

• 25

• 30

Describe the table as Direct variation, Inverse variation or Neither

• Direct Variation

• Inverse variation

• Neither

Write the equation for the table given.

• y = 1/3x
• y = 3x
• y = 1/2x

Which of the given graphs is a direct variation?

• A
• B
• C
• D

What ordered pair does a direct variation always go through when graphed?

• (0, 0)
• (1, 0)
• (0, 1)
• (1, 1)