SOl 8 and 9 REVIEW

Which of the ff. table of values represent a direct variation?

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Which of the ff. table of values represent an inverse variation?

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What does the Direct Variation Equation look like?

• y= kx
• y = mx + b
• y = b
• y = x

Is the given table a direct variation? If so, what is the constant of variation?

• Yes; 1/3
• Yes; 3
• Yes; 5
• No

The point (2,4) is an element of direct variation. Select two points that are elements of this variation?

• (0, 1)

• (4,- 2)

• (1, 2)

• (3, 6)

Which of the following represents indirect variation?

• y = kx
• y = k/x
• y = x/k
• y = mx + b

Is the given table a direct or inverse variation? What is the constant of variation?

• Direct, 12
• Inverse, 12
• Direct, 1/12
• Inverse, 1/12

x and y vary inversely. Given (5, 20), what is the constant k?

• 4

• 5

• 25

• 100

A restaurant sells pizza for the prices in the data table. Calculate the linear regression equation of the data.

• y = 1.5x + 12

• y = 12x + 1.5

• y = 0.67x - 8

Determine the curve of best fit using quadratic regression on your calculator.

• y = -2.7x + 7.4

• y = 0.95x² - 2.08x - 0.75

• y = -.05x - 3.26