Research the design of a car or another object that has curved parts.
• On graph paper, sketch a curve that models all or part of the object you chose
to research. Label four points that you think would help identify the curve.
Find the cubic function that fi ts these four points.
• Use the equation y 5 ax3 1 bx2 1 cx 1 d. Solve for the variables
a, b, c, and d using a 4 3 4 inverse matrix.

Question

Research the design of a car or another object that has curved parts. 
• On graph paper, sketch a curve that models all or part of the object you chose 
to research. Label four points that you think would help identify the curve. 
Find the cubic function that fi ts these four points. 
• Use the equation y 5 ax3 1 bx2 1 cx 1 d. Solve for the variables 
a, b, c, and d using a 4 3 4 inverse matrix.