Find f^-1(x) for f(x)=1/x^3 and state whether or not it is a function.

Inverse function is

It is a function

Step-by-step explanation:

Replace f(x) with y

Now we replace x with y and y with x

Now multiply by y^2 on both sides and solve for y

xy^3 = 1

divide by x on both sides

Take cube root on both sides

Inverse function is

For every value of x there is a y value . for each input there is only one output

so it is a function

the answer is d

the answer is in the first quadrant, which make the y-int positive.

since the dots are going down, therefore the correlation is negative

i hope it is right.

question: use the following table of a school bus during morning pickups to calculate its average speed between 2.8 km and 4.2 km

answer: 42 km/h

explanation: 1.4/0.033 42.42424 = 42 km/h

question answered by

(jacemorris04)