Question

the number of people who vote early doubles every week leading up to an election. this week 1200 people voted early. the expression 1200 x 2^W models the number of people who will vote early W weeks after this week. Evaluate the expression for w = -3. Describe what the value of expression represents in the situation.

Answer 1

The expression 1200 x 2^-3 evaluates to 150. This value represents the number of people who voted early 3 weeks before the election.