Explain why all of the graphs in this lesson show the first quadrant but omit the other three quadrants

Suppose 38 lbs of coffee beans are required to produce 2 lbs of farmer's coffee. how many lbs of coffee beans are required to produce 309 lbs of farmer's coffee?

K-7/4=11 explanation: k-7 is the numerator and 4 is the denominator then right by it it just says = 11 ( i wish i knew how to do this but ummm i cant sis)

Which of the following is a function? click on the graph until the correct graph appears.