Direct Variation
Inverse Variation
Power Models
Multivariable Functions
Linear Functions
100
y=k/x
What is the formula for direct variation
100
Y=K/X
What is the equation for inverse variation?
100
y=kx^2 and y=k/x^2
What is power model equations
100
The distance (D) is directly proportional to the average speed (S) and time (t)
What is D=St
200
this is the graph direct variation makes
What is linear graph
200
The average speed (s) in the Daytona 500 race is a function of the time (t) it takes to complete the race.
What is S=500/T
200
A direct even positive model function
What is y=kx^2 (as long as it has an even exponent)
200
The income of a person (I) is inversely proportional to the number of workers (w) and directly proportional to the money earned (e).
What is I=e/w
300
This is y when y=8 and x=4, and x=6
What is 12
300
The constant of proportionality when Sally works (h) hours for 7 dollars per hour.
What is 7 dollars
300
A direct odd positive model function
What is y=kx^3 (as long as it has an odd exponent)
300
The result of Z when X is held constant and Y increases. Z=X/Y
What is Z will increase.
400
y is this when y=5 and x=2, and x=7
What is 17 and a half
400
The equation when Y is inversely proportional to X
What is X=K/Y
400
An inverse odd negative model function
What is y=-k/x^3 (as long as it has an odd exponent)
400
The result of Z when X is held constant and Y decreases. Z=X/Y
What is Z will decrease.
500
The height of a tree is this when a person is 6 ft tall and casts an 8 and a half ft shadow, while a tree casts a 38 ft shadow
What is 26.82
500
True or False: This table shows inverse variation X 10 15 25 40 100 Y 6 9 15 24 60
What is False
500
An inverse positive even model function
What is y=k/x^2 (as long as it has an even exponent)
500
The formula when the lumen's strength (L) is directly proportional to the beam (B) , and inversely to the distance (D).
What is L=B/D
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