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(ΔX1 and ΔX2)?
Consider the following first-order model (the predictive equation) : Yº=43 – 4X1 +8X2 1. Draw the contour lines of constant response that go through the following points (5 contour lines) on the design rectangle (create a rectangle similar to the image provided at the end of this question. make sure to mark the horizontal and vertical axis as shown). Write down the value of the constant response next to each contour line. Point 1: X1 = -1 and X2= 0 Point 2: X1 = -0.5 and = X2= 0 Point 3: X1 = 0 and X2= 0 Point 4: X1 = .5 and X2= 0 Point 5: X1 = 1 and X2= 0 2. Find the direction of the steepest ascent (draw a line that passes through the center point and show the increasing direction with an arrow). 3. What is the slope of the path of steepest ascent?