How to graph an equation
Author: Oscar Cronquist Article last updated on September 25, 2018
The picture above shows the following equation
x^3+3*x^2-3
plotted on an x y scatter chart. Here are the instructions on how I built this chart:
- Type -10 and -9 in cell A2:A3
- Select cell A2:A3 and press and hold on the black dot.
- Drag down until you see the number 10.
- Release the mouse button
- Select cell B2 and type: =A2^3+3*A2^2-3
- Press Enter
- Double press with left mouse button on dot in the lower right corner. This copies the formula to cells below as far as there are cells containing values in column A.
Insert x y scatter chart
- Go to tab "Insert" on the ribbon
- Press with mouse on scatter chart icon
- Press with mouse on the scatter chart you prefer, I chose Scatter with straight lines.
Change the x and y axis minimum and maximum value
- Press with right mouse button on on x axis
- Press with mouse on "Format axis..."
- Change minimum and maximum value
- Change major units
Repeat with y axis.
Format x and y axis
- Select x axis again
- Press with mouse on Fill and Line icon
- Select "Solid Line" and pick a color.
- Repeat with y axis
Get Excel *.xlsx file
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