The total number of seats in a theatre is modeled by f(x)=x^2-3x, where x represents the number of rows of seats. How many rows
are there in the theatre if it has a total of 208 seats
1 answer:
Answer:
16 rows
Step-by-step explanation:
x² - 3x = 208
Subtract 208 from both sides
x² - 3x - 208 = 0
Factor
(x - 16)(x + 13) = 0
x = {-13, 16}
The number of rows must be positive
x = 16
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