The rule of product states that:
So, a product is positive if and only if both factors have the same sign, and is negative if only if the factors have opposite sign.
Answer:
Taybrownies1359Step-by-step explanation:
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ANSWER

EXPLANATION
The given function is

We rewrite this function to obtain,

We now compare this function to

We have

This implies that,

The vertex is (2,-11).
The focus is



#Personal computer:-
Percent


#Pacemaker:-


#Wireless communication:-


#Television:-
Percent


#Others
- 100-(10+18+26+32)=100-86=14%

