+709 f(x) is basically Y. On a graph, f(x)=31 is a horizontal line passing through 31 on the Y axis. Since there is no way to find X with this equation, X=All Real Numbers and the slope is zero.
+709 f(x) is basically Y. On a graph, f(x)=31 is a horizontal line passing through 31 on the Y axis. Since there is no way to find X with this equation, X=All Real Numbers and the slope is zero.
