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Calculate the coordinates of three points, and plot the points on the graph. Draw a straight line through them.

To calculate the coordinates, assign any value for "x", replace in the equation, and solve for "y".

Note that two points are enough in theory; the third is for additional verification, in case you commit some mistake.

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Q: Basic method of graphing a linear equation?

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y=mx+b m is slope. slope is rise over run b is y-int

The general technique for graphing quadratics is the same as for graphing linear equations. However, since quadratics graph as curvy lines (called "parabolas"), rather than the straight lines generated by linear equations, there are some additional considerations.The most basic quadratic is y = x2. When you graphed straight lines, you only needed two points to graph your line, though you generally plotted three or more points just to be on the safe side. However, three points will almost certainly not be enough points for graphing a quadratic, at least not until you are very experienced. For example, suppose a student computes these three points:Then, based only on his experience with linear graphs, he tries to put a straight line through the points.

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y=2x+12 7x+y=24 (as there is y in both equations you can assume that the equations are equal to each other, so substitute) 7x+2x+12=30 (solve) 9x=18 x=2 (substitute into the first equation to solve for y) y=(2x2)+12 y=16

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y=mx+b m is slope. slope is rise over run b is y-int

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The general technique for graphing quadratics is the same as for graphing linear equations. However, since quadratics graph as curvy lines (called "parabolas"), rather than the straight lines generated by linear equations, there are some additional considerations.The most basic quadratic is y = x2. When you graphed straight lines, you only needed two points to graph your line, though you generally plotted three or more points just to be on the safe side. However, three points will almost certainly not be enough points for graphing a quadratic, at least not until you are very experienced. For example, suppose a student computes these three points:Then, based only on his experience with linear graphs, he tries to put a straight line through the points.

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The basic motion of a car is linear motion produced by the crankshaft, which is achieved by vertical motion of the pistons in the cylinders to turn and produce linear motion of the crankshaft.

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