Write an exponential function for the value, y, after x years
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Step-by-step explanation:
Step 1: Set x equal to 0 to find the y-int
[tex]y = 10000(1 - 0.40)[/tex] → Not an exponential equation
[tex]y=10000(1-0.40)^0[/tex] → 10,000 → Works for first test
[tex]y = 10000(1-0.60)^0[/tex] → 10,000 → Works for first test
[tex]y = 10000(1+0.40)^0[/tex] → 10,000 → Works for first test
Step 2: Set x equal to 1
[tex]y=10000(1-0.40)^1[/tex] → 6,000 → Works for second test
[tex]y = 10000(1-0.60)^1[/tex] → 4,000 → Does not work for the second test
[tex]y = 10000(1+0.40)^1[/tex] → 14,000 → Does not work for the second test
Answer: The answer is Option B