Answer:
Step-by-step explanation:
89
Since the sweater is now 30% off, that means it is selling for 70% of it's original price ( 100% - 30% = 70%).
Multiply the original price by 70%:
52 x 0.70 = 36.40
The sale price is $36.40
You should actually have
Now, remember that is always non-negative, so for any value of . This means for any , and so
i.e. f(x) is at most -6, and hence negative for all .