Asked by Rebecca
How to graph equation?
Answers
Answered by
oobleck
pick any set of values for x and compute y
Then plot the point (x,y)
You should recognize that this is a parabola, which intersects the x-axis at (0,0) and (-8,0)
The vertex is at (-4,-16)
If you plot those three points and draw a smooth curve through them, which gets steeper on the ends, you will see the shape.
Also, there are many handy online graphing web sites.
A good one is wolframalpha.com
Just type in your function, and it will show the graph, as well as many other useful bits of information.
Then plot the point (x,y)
You should recognize that this is a parabola, which intersects the x-axis at (0,0) and (-8,0)
The vertex is at (-4,-16)
If you plot those three points and draw a smooth curve through them, which gets steeper on the ends, you will see the shape.
Also, there are many handy online graphing web sites.
A good one is wolframalpha.com
Just type in your function, and it will show the graph, as well as many other useful bits of information.
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