Value of Andique
12.000
10.000
8.000
(6) NA
6,000
4,000
2,000
10 20 30 40 50
Age of Antique (years)
Based on the model, estimate to the nearest $50 the average rate of change in value for the antique for the following intervals:
(a) from 0 to 20 years:
100
(b) from 20 to 40 years:
150
Which of the following represents a number squared is equal to twenty more than nine times that number ? a) x squared = 9x + 20 b) x squared = 20x + 9 c) x squared > 9 + 20x d) x squared = 9 + x + 20