Which statement describes the behavior of the function f (x) = StartFraction 2 x Over 1 minus x squared EndFraction? f (x) = StartFraction 2 x Over 1 minus x squared EndFraction

B. The graph approaches 0 as x approaches infinity.

Step-by-step explanation:

The function f(x) is:

f(x) = (2x)/(1-x^2)

When x approach infinity the term x² grows rapidly (more rapid than x), thus 1 - x², which is in the denominator will decrease, become a large negative more rapid than the x in the numerator. Thus you can expect that the function approaches zero.

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18