Solve the problem using matrices.The table below shows the number of birds for three selected years after an endangered species protection program was started.
Use the 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 models the data.
A. y = 8x2 - 21x + 25
B. y = 4x2 + 7x + 29
C. y = 5x2 + 14x + 24
D. y = 6x2 - 7x + 32
Answer: B
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Solve the problem.A rumor is spread at an elementary school with 1200 students according to the model 
where N is the number of students who have heard the rumor and d is the number of days that have elapsed since the rumor began. How many students will have heard the rumor after 5 days?
A. 689 students B. 1006 students C. 1063 students D. 661 students
Convert to scientific notation.1,077,000,000,000,000,000
A. 1077 × 1015 B. 1.077 × 1018 C. 1077 × 10-15 D. 1.077 × 10-18
Use a graphing calculator to sketch the graph of the quadratic equation, and then give the coordinates for the x-intercepts (if they exist).y = x2 + 10x + 24
A. (4, 0); (6, 0) B. (-4, 0); (6, 0) C. (-4, 0); (-6, 0) D. (4, 0); (-6, 0)
Divide. Express the quotient in lowest terms.
÷ 
A. 
B. 
C. 
D. 