Search
Browse
Create
Log in
Sign up
Log in
Sign up
Upgrade to remove ads
Only $0.99/month
Direct Variation
STUDY
Flashcards
Learn
Write
Spell
Test
PLAY
Match
Gravity
Key Concepts:
Terms in this set (22)
YES
K=3
Is this a direct variation? YES or NO
If yes what is the direct variation?
NO
Is this proportional? YES or NO
If yes what is the direct variation?
k = 1.5
What is the constant of proportionality? (type k = ___)
y = 0.20x
What is the equation for this direct variation?
y = 4.5x; x = 10
If y = 27 when x = 6, write the direct variation equation and find x when y = 45.
y = 0.5x; y = 10
If y = -7 when x = -14, write the direct variation equation and find y when x = 20.
y = 2x; y = 40
If x = -7 when y = -14, write the direct variation equation and find y when x = 20.
y = 2x; y = 10
If y = 8 when x = 4, write the direct variation equation and find y when x = 5.
y = 0.5x; y = 2.5
If x = 8 when y = 4, write the direct variation equation and find y when x = 5.
y = 6x; x = 7
If y = 36 when x = 6, write the direct variation equation and find x when y = 42.
y = 1/6x; x = 252
y = 1/6x; x = 252 If x = 36 when y = 6, write the direct variation equation and find x when y = 42.
y = -4x; x = -5
If y = -16 when x = 4, write the direct variation equation and find x when y = 20.
y = -1/4x; x = -80
If x = -16 when y = 4, write the direct variation equation and find x when y = 20.
y = -3x; y = -18
If y = -18 when x = 6, write the direct variation equation and find y when x = 6.
y = -1/3x; y = -2
If x = -18 when y = 6, write the direct variation equation and find y when x = 6.
y = 1/3x; y = -8
If y = 4 when x = 12, write the direct variation equation and find y when x = -24.
y = 3x; y = -72
If x = 4 when y = 12, write the direct variation equation and find y when x = -24.
y = 5x; y = 100
If y = 2.5 when x = 0.5, write the direct variation equation and find y when x = 20.
y = 1/5x; y = 4
If x = 2.5 when y = 0.5, write the direct variation equation and find y when x = 20.
y = 1.05x
The number of laps a swimmer swims, y, varies directly with the number of minutes spent
swimming, x. In 50 minutes, the swimmer swims 52.5 laps. Write a direct variation equation
k = $33.75
Jerry rents snowmobiles to tourists. He charges $135 for 4 hours and $202.50 for 6 hours. If the cost varies directly with amount of hours find k, the hourly rate Jerry charges to rent a snowmobile?
y = 3/2
If y varies directly with x, write an equation for the direct variation. Then find each value.
Find y when x = 1, if y = 3 when x = 2.
THIS SET IS OFTEN IN FOLDERS WITH...
Slope and Slope Intercept Form
31 terms
Proportional Relationships in Tables, Gr…
37 terms
Number System Vocabulary
28 terms
Ratios and Proportions Vocabulary
24 terms
YOU MIGHT ALSO LIKE...
Direct Variation
20 terms
Direct Variation, Proportional Relations…
33 terms
Direct , Indirect, and Joint Variation
22 terms
Function Notation
12 terms