Which function represents g(x), a refection of f(x)=1/2(3)^x across the y-axis
1 answer:
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Answer:
$2000
Step-by-step explanation:
6,000 dollars is invested in two different accounts earning 3% and 5% interest.
Let x be the amount invested in account earning 3% interest
So, 6000-x is the amount invested in account earning 5% interest
So, Simple interest for account earning 3% interest
Simple interest for account earning 5% interest
Since we are given that the two accounts earned $220 in interest
So,
So, 4000 was invested at 3%
(6000-x)=6000-4000=2000 was invested at 5%
Hence 2000 was invested at 5%
what is f(-3) is another way to say "what is the value of f(x) when x = -3?", well for that we can simply look at the piece-wise function graphed, Check the picture below.
