Question

Got some math questions here, calculus... heads up!

Answer 1

Speak, young one

Answer 2

The demand equation for soccer tournament T-shirts is

xy−5,000=y

where y is the number of T-shirts the Enormous State University soccer team can sell at a price of $x per shirt. Find dy/dx x=3

Answer 3

xy-5000=y. y-xy = -5000. y(1-x) = -5000. y = -5000 / (1-x). Take the derivative of -5000/ (1-x). Then set x to 3.

Answer 4

I feel like I tried that earlier cause that was my first guess, but let me try it again and see if it works

Answer 5

2500 is incorrect

Answer 6

oh wait I'm dumb

Answer 7

didn't take the derivative

Answer 8

I got it, thanks so much for your help!

Answer 9

Derivative(-5000 / (1-x)) = -5000* Derivative(1/(1-x)) = -5000 * Derivative (1-x)^-1. Now apply the chain rule and you get -5000 * -1 * -1 * 1/(1-x)^2 = -5000 / (x-1)^2 = -5000 / 2^2 = 1250 is what I get.

Answer 10

Oh you got it, cool.