Ben works at a pet store. He has $452 to buy new cat toys for the store. Each toy costs $4. How many toys can Ben buy?
2 answers:
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Answer:
B.
- as x increases, f(x) decreases;
- as x decreases,f(x) decreases
Step-by-step explanation:
The function is of even degree with a negative leading coefficient. f(x) will tend toward negative infinity as x gets larger or smaller. That is ...
- as x increases, f(x) decreases;
- as x decreases,f(x) decreases
_____
<em>Even degree</em> means the end behaviors are the same for both large and small x. <em>Negative leading coefficient</em> means the function value decreases for larger x.
we know that
step 1
multiply by
so
step 2
Divide numerator and denominator by
therefore
the answer is