Question 2 • CMS 2026-2027 NC Math 1 CREDIT RECOVERY
A limited-edition poster increases in value each year with an initial value of 18 dollars After 1 year and an increase of 15 percent per year, the poster is worth 20 point 7 0 dollars Which equation can be used to find the value, y , after x years? (Round money values to the nearest penny.)
Answer
A
y is equal to 20 point 7 times 0 point 1 5 to the x th power
B
y is equal to 20 point 7 times 1 point 1 5 to the x th power
C
y is equal to 18 times 0 point 1 5 to the x th power
D
y is equal to 18 times 1 point 1 5 to the x th power
Explanation
For an increase of 15% each year, multiply the value by 1 + 0.15 = 1.15 for each year. The poster starts at $18, so its value after x years is y = 18(1.15)^x. This is choice D; after one year it gives $18 × 1.15 = $20.70.
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