Algebra 2 Direct Variation Practice

In a direct variation, y=39 when x=3.  Find the value of y when x=2.

• 26
• 3
• 58.5
• 2

Tags

CCSS.HSF-LE.A.1B

Is this a direct variation?
y=2x

• yes
• no

Which of the given graphs is a direct variation?

• A
• B
• C
• D

What does the Direct Variation Equation look like?

• y= kx
• y = mx + b
• y = b
• y = x

In a direct variation, y=39 when x=3.  Find the value of y when x=2.

• 26
• 3
• 58.5
• 2

If x and y vary directly, what is the missing value in the points (x, 4) and (-14, -8)?

• x = -7
• x = -2.3
• x = 2.3
• x = 7

The value of y varies directly with x.  Which function represents the relationship between x and y if y = 14 when x = 6. 

• y=20x
• y=84x
• y=7/3x
• y=3/7x

Is this a direct variation?
y=2x

• yes
• no

Is this a direct variation?  y =2x + 1

• Yes
• No

 y varies directly with x.
 y is 84 when x is 16. What is the constant of proportionality?

• y = (21/4)x
• k = 21
• k = 5.25
• k = 4/21

Tags

CCSS.7.RP.A.2B