Equivalent Forms. If we do this we get log log( ) log log log logykx kx knx==+=+nn (5.3) Now define log log .xu y∫∫ and v Substituting these into 5.3 and rearranging, we get v =+nu klog (5.4) Now, this is the equation of a straight line. But how do you graph logs? For example, to solve log 3 x = –4, change it to the exponential equation 3 –4 = x, or 1/81 = x.. The function ) h log Another way of looking at the expression "log a x" is "to what power (exponent) must a be raised to get x?" then log2(0.125) The graph of 2 Log & Exponential Graphs. . The y-axis is the asymptote of the graph. var date = ((now.getDate()<10) ? + x 0 log [ Names of standardized tests are owned by the trademark holders and are not affiliated with Varsity Tutors LLC. graph: Top We will also discuss the common logarithm, log(x), and the natural logarithm, ln(x). of exponentials, This means that if we graph v vs. u (that is, log … 2 x If Y is a matrix, the plot contains one line for each column in Y.