Algebra - Direct Variation/Line of Best Fit

Is this a direct variation?
y/x = 2

• yes
• no

Is this a direct variation?
xy = 7

• yes
• no

Tags

CCSS.HSA.REI.D.10

Does the relationship represent direct variation?

• Yes
• No

Tags

CCSS.HSA.CED.A.2

CCSS.HSA.REI.D.10

CCSS.HSF.LE.A.1

CCSS.HSF.LE.A.2

CCSS.HSS.ID.C.7

CCSS.HSF.IF.B.4

An object that weighed 180 pounds on earth weighed 30 pounds on the moon.  Another object that was 138 pounds on earth weighed 23 pounds on the moon.  Does this data represent a direct variation?

• Yes
• No

Tags

CCSS.HSA.CED.A.2

CCSS.HSF.LE.A.1

CCSS.HSF.LE.A.2

CCSS.HSF.BF.A.1

A truck took 250 feet to stop when going 50 miles per hour.  A car took 200 feet to stop when going 60 miles per hour.  Does this data represent a direct variation?

• Yes
• No

Tags

CCSS.HSA.CED.A.2

CCSS.HSS.ID.C.7

CCSS.HSA.SSE.A.1

18x = 3y

• Direct Variation
• Not Direct Variation

• (0,0)

• (2,4)

• (1,1)

• (-7,1)

• (1,4)

Force (F) varies directly with acceleration (a) such that when the acceleration is quadrupled, the Force will quadruple.  Which of the below could be the equation to describe this relationship?

• F=m/a
• F=ma
• F=m/a+4
• F=ma+4

Which is a direct variation equation?

• y=3/x
• xy=12
• y/x=12
• x=3/y

Select all which are direct variation.

• y = 5x

• x = 2y

• xy = 2

• y/x = 6

• y = 3x - 1