Question

State whether the following statement is true or false:

If y = 20 + 15x + x² then `dx/dy = 1/(15 + 2x)`

Answer 1

This statement is true.

Explanation:

y = 20 + 15x + x²

Differentiate w.r.t.x:

`dy/dx = 15 + 2x`

`dx/dy = 1/(dx/dy)`

`dx/dy = 1/(15 + 2x`