Solve the problem.If f varies jointly as q2 and h, and 
when 
and 
, find f when 
and 
.
A. 12
B. 18
C. 36
D. 4
Answer: C
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Sketch the indicated line.Two electric currents I and J (in mA), in part of a circuit in a computer are related by the equation 
. Sketch J as a function of I. These currents can be negative.
A. 
B. 
C. 
D. 
Determine whether the function is even, odd, or neither.f(x) = 5x2 + 4
A. Neither B. Odd C. Even
Simplify, if possible.
A. - 
B. 6
C. -1
D. -6
Find the center, transverse axis, vertices, foci, and the equations of the asymptotes of the hyperbola.121y2 - 9x2 = 1089
A. center: (0, 0)
transverse axis: y = 0
vertices: (-3, 0), (3, 0)
foci: (-11, 0), (11, 0)
asymptotes: y = - 
x and y = 
x
B. center: (0, 0)
transverse axis: x = 0
vertices: (0, -3) and (0, 3)
foci: (0, -
) and (0, 
)
asymptotes: y = - 
x and y = 
x
C. center: (0, 0)
transverse axis: y = 0
vertices: (-11, 0), (11, 0)
foci: (-
, 0) , (
, 0)
asymptotes: y = - 
x and y = 
x
D. center: (0, 0)
transverse axis: x = 0
vertices: (0, -3), (0, 3)
foci: (-
, 0) , (
, 0)
asymptotes: y = - 
x and y = 
x