You operate a gaming website, www. mudbeast. net, where users must pay a small fee to log on. When you charged $4 the demand was 530 log-ons per month. When you lowered the price to $3.50, the demand increased to 795 log-ons per month.

step-by-step explanation:

no, her answer is not correct.   we square the lengths of all sides and then determine whether the pythagorean theorem holds here:

9² + 15² = 306.   this is not equal to the square of the longest side ( that square being 395.   answer c is correct.

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step-by-step explanation:

this is a parabola.