Direct Variation

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

• True

• False

Tags

CCSS.8.EE.B.6

CCSS.8.F.B.4

The letter k in the equation y = kx stands for

• the constant of proportionality

• king

• queen

Tags

CCSS.HSF-LE.A.1B

Do x and y show direct variation?

y = 2x + 3

• Yes

• No

Tags

CCSS.8.EE.B.5

CCSS.8.F.A.3

CCSS.8.SP.A.3

Do x and y show direct variation?

y = 5x

• Yes

• No

Tags

CCSS.8.EE.B.5

CCSS.8.F.A.1

CCSS.8.F.A.3

CCSS.8.F.B.4

CCSS.8.SP.A.3

Do x and y show direct variation?

y = x²

• 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

Is this the graph of a direct variation?

• Yes

• No

Tags

CCSS.8.EE.B.5

CCSS.8.EE.B.6

CCSS.8.F.A.3

CCSS.8.F.B.4

CCSS.8.F.B.5

CCSS.8.SP.A.3

Is this the graph of a direct variation?

• Yes

• No

Tags

CCSS.8.EE.B.5

Does this table of values represent a direct variation?

• Yes

• No

Tags

CCSS.8.EE.B.5

CCSS.8.EE.B.6

CCSS.8.F.A.1

CCSS.8.F.B.4

Does this represent a direct variation?

• Yes

• No

Tags

CCSS.8.EE.B.5

CCSS.8.EE.B.6

CCSS.8.F.A.3

CCSS.8.F.B.4

CCSS.8.SP.A.2