Direct Variation Algebra

An equation of direct variation can be written in the form: y = kx

• True

• False

The letter k in the equation y = kx stands for

• the constant of proportionality

• king

• queen

Tags

CCSS.7.RP.A.2B

Do x and y show direct variation?

y = 5x

• Yes

• No

The graph of a direct variation must be a straight line and must pass though

• Quadrant 1 and 3

• Quadrant 2 and 4

• the origin (0,0)

Tags

CCSS.8.EE.B.5

• F

• G

• H

• J

Tags

CCSS.8.EE.B.5

• F

• G

• H

• J

The relationship between input and output is shown in the table. Based on the values in the table, which statement is true?

• y varies directly with x and the constant of variation is 1 / s

• y varies directly with x and the constant of variation is 5.

• The relationship represents the linear function y = 12x + 3y.

• The relationship represents the linear function y = -2x – 11.

Tags

CCSS.HSF-LE.A.1B

• A
• B
• C
• D

Tags

CCSS.HSF-BF.A.1A

If f(18) = 7(18) + 40 which function gives an appropriate representation of f(x)?

• f(x) = 7x

• f(x) = 18

• f(x) = 7x + 40

• f(x) = 18x + 40

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

• A.
• B.
• C.
• D.

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1