system of linear equations in three variables, and then use matrices to solve the system. Ole below shows the number of birds for three selected years after an endangered species protection program was started. mber of years after 1980) 1 2 3 y (Number of birds) 42 61 86 e quadratic function y = ax2 + bx + c to model the data. Solve the system of linear equations involving a, b, and c using matrices. Find the equation that model y=5x-10x+32 y=3x+10x+29 C. y=6x-30x+25 D. y=4x+20x+24