Direct Variation
What is the equation for the constant in terms of k?
k=y/x
What is the equation of the constant in terms of k?
k = x . y
What is the VA of
(x+2)/(x-3)
3
What is the HA of
(x + 5) / (x^2 - 25)
y = 0
What is the domain of a rational function with one VA at x = 5
D: R | x =/ 5
What is the direct variation equation when x=2 and y=4
y = 2x
What is the inverse variation equation when x=2 and y=4?
y = 8/x
What is the VA of
(x-4) / ((x+1)(x+4))
-4 and -1
What is the HA of
(x^3)/(x^2 + 7x - 1)
no HA
What is the Range of a rational function with a HA at y=8
Range: R | y=/8
What is the direct variation equation of x=10 and y=5?
y = 1/2 x
What is the inverse variation equation if x=-3 and y=3?
y = -9/x
What is the VA of
(x-1)/((x+2)(x-1))
-2
What is the HA of
(x-4) / ((x+1)(x+4))
y = 0
What is the Domain and Range if VA at -2 and an HA at 0
D: R| x=/ -2
R: R| y=/ 0
If x=3 when y=12, find y when x=4
16
If x=3 when y=12, find y when x=4
9
What is the VA of
1/(x^2 + 6x + 8)
-4 and -2
What is the HA of
(3x^2)/(x^2 - 4)
y = 3
What is the Domain and Range if VA at 3 and -3 and no HA
D: R| x=/ 3, -3
R: R (all reals)
If x= 1 when y=9, find y when x=-3
-27
If x=0.5 when y=14, find y when x=7
1
What is the VA of
(x + 5) / (x^2 - 25)
What is the HA of
(x^2 + 1)/ (5x^2 - 1)
y = 1/5
What is the Domain and Range of
y = (x + 2)/(x-5)
D: R | x=/ 5
R: R | y=/ 1