Write an equation for the nth term of the sequence: -1, 3, -9, 27 . . .

an = ( )n-1

Group of answer choices

1(3)^(n-1)

-1(-1/3)^(n-1)

-1(-3)^(n-1)

-3(-1)^(n-1)

vertical asymptote .

horizontal asymptote .

step-by-step explanation:

given function is .

vertical asymptote is given by setting

denominator =0

when degree of numerator and denominator are same then divide first term of numerator by first term of denominator to get horizontal asymptote.

the height of the surface increases from the center out to the sides of the road.

step-by-step explanation:

as we move out we move away from the x-axis.

and as mentioned in the problem statement that height of a road increases when we move away from the center x.

hence proved that 3rd option

the height of the surface increases from the center out to the sides of the road.

is the correct option.