A furniture company produces tables and chairs. The profit on each table is $15 and $5 for each chair. The amount of wood available is enough for at most 25 tables and chairs. They need to produce at least 5 tables but no more than 15 tables. They also need to produce at least 10 chairs but no more than 20 chairs. The company needs to know many of each should be prepared to maximize the profit. How could the variables be defined? *

first option

a function is a relation in which an input is paired with exactly one output.

so, let's find the right answer.

in our first option, our inputs are january, february, and march. the outputs are 30, 28, and 25. each input has it's own output. this is correct!

our second option we know is incorrect, because ms. valverade has two outputs, dogs and cats. this is not a function.

our third option is incorrect as well. the yellow square has two ouputs, the square and the triangle.

lastly, in our fourth option, we see the number 7 two times with a different output. therefore, this is not a function.

remember: each input must be paired with only one output!