The revenue R for a company selling x units is R = 1100x 0.1x2. Use differentials to approximate the change in revenue if sales increase from x = 1000 to x = 1100 units.

STEP 1: Begin by differentiating the equation of R in terms of x. dR dx =1100-0.2x Correct: Your answer is correct.

STEP 2: Approximate R by solving for dR. R dR = Incorrect: Your answer is incorrect. dx

STEP 3: Solve the equation for dR by substituting the relevant variables. dR = 880 Incorrect: Your answer is incorrect

. STEP 4: Select the relevant conclusion.

The revenue increases by $90,000.

The revenue is $1,089,000.

The revenue decreases by $1,000.

The revenue is $1,000,000.

The revenue increases by $1,100.