Lena is walking. her distance

d

in kilometers from glen city after

t

hours of walking is given below.

d(t)=12.8-4t

complete the following statements.

let
d−1

be the inverse function of
d

.
take
x

to be an output of the function
d

.
(a)

which statement best describes
d−1x

? her distance from glen city (in kilometers) after she has walked
x

hours. the ratio of the amount of time she has walked (in hours) to her distance from glen city (in kilometers),
x

.the reciprocal of her distance from glen city (in kilometers) after walking
x

hours. the amount of time she has walked (in hours) when she is
x

kilometers from glen city.
(b)

=d^−1(x)

(c)

=d^−1(8.4)