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,\'Untitled tatic/nb/uiindex.html?nbld 716318&nbNodeld-269634266; x? D Register! Pearso\' t sessio A week 1 . ECON : Pearson MyLab ar 56771729434241 5% MIN DTAP Refresh Your Math& Graphing Skills Due on Tomorrow at 11:59 PM MST The following graph contains four lines (A, B, C and D), each of which has a slope that is either or infinite. positive, negative, zero, X-axis

Solution

As the poverty rates fall the crime rates also fall, which seems to be a case of positive relationship because both fall at the same time. As such, the relationship is positive and the line that reflects this relationship is line D
When the education level increases the crime rates are reduced. There seems to be a negative relationship between the two. This negative relationship is shown by line C.
When the education level increases the income level also increases and this is shown as a positive relationship. Again positive relationship is shown by Line D
The slope of line B is zero and not infinity. Therefore this statement is false. The reason is that the line is horizontal which implies that for any given change in the value of x axis, there is no change in the value on y axis. And therefore the slope is zero.
In the diagram that is given in the last, the two lines are parallel. Hence their slopes should be same. Therefore when both regions experience and increasing the price by 20 cent per pound, the quantity supplied in both the regions will increase by 100 pounds. Therefore the first option is correct. The quantity will increase by 100 pounds per year.