For her parents' anniversary party, Sidney is considering using one of two venues. A hotel in Milford will cost $200 for a reser
vation, plus $60 per person. A restaurant in the same city will cost $40 per person, in addition to $300 for the reservation. In order to make the best decision, Sidney figures out how many attendees it would take to have the venues cost the same amount. How many attendees would that be?
1 answer:
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check the picture below.
so, y = -3 is simply a horizontal line, as you see there, and any perpendicular line to that will be a vertical one, whose slope is undefined.
we can check by simply picking two points off the red line hmmm say (-2,2) and (-2, -2)
