Exponential and Linear Growth Question (Where am I going wrong?)

1. Research the highest interest rate (APY: annual percent yield) for 2-year and 5-year CDs. Document the company's name, interest rate, and minimum investment. The minimum investment must be less than or equal to $5,000.

This is what I have so far from my researched company.
Discover Bank: 1.15%, $2,500 2-year CD
Discover Bank: 2.10%, $2,500 5-year CD

Question

Exponential and Linear Growth Question (Where am I going wrong?)

1. Research the highest interest rate (APY: annual percent yield) for 2-year and 5-year CDs. Document the company's name, interest rate, and minimum investment. The minimum investment must be less than or equal to $5,000.

This is what I have so far from my researched company. 
Discover Bank: 1.15%, $2,500 2-year CD 
Discover Bank: 2.10%, $2,500 5-year CD