How many points need to be removed from this graph so that it will be a function?
1 answer:
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Answer:
in picture
Step-by-step explanation:
— Round tables will have 6 chairs, rectangular tables will have 10 chairs, the total number of chairs must be at least 185: 6x +10y ≥ 185
— There be no more than 15 rectangular tables: y ≤ 15
— No fewer than 6 round tables: x ≥ 6
— Rectangular tables must be at least 1/3 the number of round tables: y ≥ (1/3)x ⇒ 3y ≥ x
Solve the system of equations:
Equate right sides of bothe equations:
then
You obtain the exact solution of the system of equations.
Since and
, ordered pair (0.6,1.8) is the best approximation of the exact solution.
Answer: correct choice is B.