a) Y = 7.5x
b) slope = 7.5 = cost per guest
c) 7.5(10) = $75
The cost y (in dollars) to provide food for guests at a dinner party is proportional to the number x of guests attending the party. IT costs $30 to provide food for 4 guests.
a. Write an equation that represents the situation.
b. Interpret the slope.
c. How much does it cost to provide food for 10 guests?
1 answer