Question

Which of the following is always true about the graph of a horizontal line? *
1 point
A. The graph will have a positive y-intercept.
B. The graph will have a negative y-intercept.
C. The slope of the graph will be undefined.
D. The slope of the graph will be zero.
slope is (change in y) / (change in x)
if the line is horizontal, the y values does not change, so ...

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