A collector purchased a rare coin for $100. After the purchase, the coin’s value increased by 10.25% per year for the first x years and 5% per year for the next y years. The expression 1.1025 x ⋅ 1.05y when multiplied by 100, reveals the value of the coin, in dollars, (x+y) years after the coin was purchased. The collector simplified the expression to 1.05x+2y, but he made a mistake. How can the collector correct his mistake? The base of the simplified expression should be (1.05, 1.1025), and the exponent should be (2xy, x+y, x+2y, 2x+y, 2x+2y). choose one for each
Equations and Inequations
Equations and inequalities describe the relationship between two mathematical expressions.
Linear Functions
A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.
A collector purchased a rare coin for $100. After the purchase, the coin’s value increased by 10.25% per year for the first x years and 5% per year for the next y years. The expression 1.1025 x ⋅ 1.05y when multiplied by 100, reveals the value of the coin, in dollars, (x+y) years after the coin was purchased. The collector simplified the expression to 1.05x+2y, but he made a mistake. How can the collector correct his mistake?
The base of the simplified expression should be (1.05, 1.1025), and the exponent should be (2xy, x+y, x+2y, 2x+y, 2x+2y).
choose one for each
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