Aline is drawn through (–4, 3) and (4, 3). which describes whether or not the line represents a direct variation?

the line represents a direct variation because = negative startfraction 4 over 3 endfraction equals startfraction 4 over 3 endfraction.
the line represents a direct variation because it is horizontal.
the line does not represent a direct variation because it does not go through the origin.
the line does not represent a direct variation because –4(3) ≠ 4(3).

The management of a supermarket wants to adopt a new promotional policy of giving a free gift to every customer who spends more than a certain amount per visit at this supermarket. the expectation of the management is that after this promotional policy is advertised, the expenditures for all customers at this supermarket will be normally distributed with a mean of $95 and a standard deviation of $20. if the management wants to give free gifts to at most 10% of the customers, what should the amount be above which a customer would receive a free gift?