The cost y (in dollars) to rent a kayak is proportional to the number x of hours that you rent the kayak. It costs $27 to rent the kayak for 3 hours. a. Write an equation that represents the situation.

If the cost y is proportional to the number of hours x:

y = kx   where k is the constant of proportion.

Given $27 for 3 hours, find k

27 = 3k

k = 9

Your equation is:  y = 9x

From this, given a value for y or x you can plug it in to find the other.

Step-by-step explanation:

f(x) = x^3 -2x^2 -3x

x( x^2 -2x-3)

x( x^2 +x -3x -3)

x( x(x+1) -3(x+1))

x( x-3)( x+1)

so zeroes are 0, 3,-1

its (2) option

b

step-by-step explanation: