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Graphing Horizontal and Vertical Lines

Graphing Horizontal and Vertical Lines 1.6 - Solution

arrow_back Return to Graphing Horizontal and Vertical Lines
Looking at the table, we can identify ordered pairs. Note that there is no change in We can choose any two points from the table and use the slope formula. We will substitute the points and for and respectively, to find the slope
Thus, the slope is

Alternative Solution

Rate of change

If we instead use the table to look at the change in and we'll see that does not change at all.

Since does not change, the points must represent a horizontal line. Thus, the slope of all horizontal lines is equal to