Suppose this relation forms a function: {(3,-5), (-2,9), (0,4), (x,7)}. What values are not possible for the value of x?

1 answer:

4 0

Since the definition of a function is that x values can’t repeat, any X values that are used in the other coordinates cannot be reused. So the answer has to be x cannot equal 3, -2, or 0

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A farmer has 20 acres to plant in wheat and barley. He has to plant at least 15 acres. Wheat costs $200 per acre to plant and ba

maria [59]

Answer:

16 acres of barley only (no acres of wheat)

Step-by-step explanation:

A graph shows cost of planting puts an upper limit on planted area. The lower limit is provided by the requirement to plant at least 15 acres. The vertices of the feasible solution region are ...

(wheat acres, barley acres) = {(0, 15), (0, 16), (3, 12)}

The profit associated with these scenarios will be ...

for (0, 16): 16·350 = 5600

for (3, 12): 3·450 +12·350 = 1350 +4200 = 5550

To maximize profit, the farmer should plant 16 acres of barley.