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an art teacher has 20 pounds of clay but wants to buy more clay for her class. the amount of clay x purchased by the teacher and the amount of clay y avaliable for the class are shown on the graph.

1. if the teacher buys 10 more pounds of clay, how many pounds will be available for the art class?

2. if the art class has a total of 50 lb of clay available, how many pounds of clay the teacher buy?

how can you use the graph to find this information?

! : o

~ if you solved this you, you so much ^^

1. 30 Pounds

2. 30 Pounds

Step-by-step explanation:

As we see in the graph the amount of clay available is represented by the Y-axis and the amount of clay bought is represented by the X-axis. Each line in both axis are counted as 1:10.

Now, the amount clay bought starts at 0 and the clay available starts with 20. This shows that if the teacher did not buy any clay, there will be 20 pounds of clay available.

In the first question the problem indicates that the teacher purchased 10 more pounds. Now the plot of the X-axis is at the 10 point and the Y-axis is at the 30 point. Where they meet represents the amount of both axis. This then shows that if the teacher buys 10 more pounds of clay, the amount of clay available will be 30 pounds total.

In the second question it indicates that if the clay available is at 50 pounds, the teacher would've bought 30 pounds of clay. As we can see in the graph the 3rd point is the representative of 50 pounds of clay. Now if we look down on where the point is in the X-axis, we can see that it is in the 30 range.

you need a common difference between consecutive terms to be constant, like 1,2,3,4 or 2,4,6,8, or 1,3,6,9