1. A. This is a linear function. Its graph is a straight line with a slope of −4 and a y-intercept of 10.
2. D. -6
3. B. y=10x+2
4. B. y=3,000x+3, where x is the number of months and y is the total amount of money Oliwia will have in her account.
5. C. y=-2x+2