Unit 2, Lesson 2
Funding the Future
Algebra 2
2.1
Warm-up
Notice and Wonder: Writing Numbers
What do you notice? What do you wonder?
3 hundreds, 2 tens, 9 ones
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What do you notice? What do you wonder?
3 hundreds, 2 tens, 9 ones
A polynomial function of
Let’s say we’re going to invest $200 at an annual interest rate of
If an additional $350 is invested at the end of the first year, we can revise the polynomial. The amount of money in the account after 1 year is the same, but now the amount of money after two years is
If $400 more is invested at the end of the second year and $150 more is invested at the end of the third year, the total value of the account can then be represented by the polynomial
Let
Graph of a line, origin O. Horizontal axis, x, growth factor, scale is 0 to 1 point 4 by point 2s. Vertical axis, v, dollars, scale is 0 to 2,800 by 200's. Line starts at the origin, curving upwards and to the right, passing through points A and B.
A polynomial function of
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