Question

Given the following curve, find (d^2 y/dx^2). 7x+2y=20

Answer 1

first rewrite the equation where y is expressed as a function of x:
y=-7x/2+10
then differentiate
y'=-7/2
y''=0<answer

Answer 2

out of my answer choices the best answer would be -49/4y^3. Right?

Answer 3

what do you mean?