ASAP Which of the pairs of functions and their inverses will always have a domain and range of all real numbers?

a pair of linear functions
a cubic function and a cube root function
a quadratic function and a square root function
a logarithmic function and an exponential function

a cubic function and a cube root

Step-by-step explanation:

EDG 2020

step-by-step explanation:

let's assume

number of candles set =x

price of of x candles =p(x)

we are given

a candle maker prices one set of scented candles at $10 and sells an average of 200 sets each week

so, we get point as (200,10)

he finds that when he reduces the price by $1, he then sells 50 more candle sets each week

so, we can find slope

now, we can use point slope form of line

now, we can plug values

we can use point

and find b

now, we can plug it back

and we get

now, we can find revenue

we know that

revenue = price*quantity

so, we get