posted by nic .
please help. Compute Δy and dy for x = 4 and dx = Δx = -0.2. (Round the answers to three decimal places.)
y = 4x - x2....im lost to were to start solving for delta y
To compute for dy, you use the equation dy=f'(a)*dx where f'(a) is the derivative of the function given.
So dy=(4-2x)*dx Plug in the values
To find Δ y, you use the equation
Δy=f(x-Δx)-f(x) Plug in the values