Decoding the 2024 AP Calculus AB/BC Exam: FRQ #4

The graph of the differentiable function f , shown for −6 x 7, has a horizontal tangent at x = −2 and is linear for 0 x 7. Let R be the region in the second quadrant bounded by the graph of f , the vertical line x = −6, and the x- and y-axes. Region R has area 12.