# Draw graph of the exponential function

How to draw a graph of exponential function like this: $y=3\cdot 2^x$ ?

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First of all, we can made y value table with random x values. Don't take big numbers, because it will be difficult to drop them on the plane coordinate system.  Here is our table:
\begin{array}{|c|c|c|c|c|} \hline
x & -2 & -1 & 0 & 1  \\\hline
y &  0.75 & 1.5 & 3 & 6 \\\hline
\end{array} Now we can drop the points from our table on the plane coordinate system and draw graph of exponential function.

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