Rite cut riding lawnmower obeys the demand equation p=-1/20x+1060. the cost of producing x lawnmowers is given by the function c(x)=120x+5000

a)express the revenue r as a function of x
b)express the profit p as a function of x
c)fine the value of x that maximizes profit. what is the maximum profit?
d)what price should be charged to maximize profit?

here

step-by-step explanation:

option 1 is correct.

step-by-step explanation:

y varies inversely with x and constant of variation is 4

the equation will be:

y = k/x

where k =4 so,

y = 4/x

if we put values of x of option 1 in the above equation and find values of y

y = 4/-2 => y =-2

y = 4/-1 => y = -4

y = 4/1 => y = 4

y = 4/2 => y =2

so, all the values of x and y are correct.

if we put values of x given in other options and find value of y we cannot find whole table satisfying the equation.

hence option 1 is correct.