SOLUTION: Graph y=x2-2x-2
NOTE-the two after the first x is an exponent
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Question 147611: Graph y=x2-2x-2
NOTE-the two after the first x is an exponent
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
Table of Contents:
Jump to Table
Jump to Graph
In order to graph , we need to plot some points.
Let's find y when :
Start with the given equation.
Plug in .
Square to get .
Multiply and to get .
Multiply and to get .
Combine like terms.
So if , then .
----------------------------------------------------
Let's find y when :
Start with the given equation.
Plug in .
Square to get .
Multiply and to get .
Multiply and to get .
Combine like terms.
So if , then .
----------------------------------------------------
Let's find y when
(Note: you can start with any x-value):
Start with the given equation.
Plug in .
Square to get .
Multiply and to get .
Multiply and to get .
Combine like terms.
So if , then .
----------------------------------------------------
Let's find y when :
Start with the given equation.
Plug in .
Square to get .
Multiply and to get .
Multiply and to get .
Combine like terms.
So if , then .
----------------------------------------------------
Let's find y when :
Start with the given equation.
Plug in .
Square to get .
Multiply and to get .
Multiply and to get .
Combine like terms.
So if , then .
----------------------------------------------------
Let's find y when :
Start with the given equation.
Plug in .
Square to get .
Multiply and to get .
Multiply and to get .
Combine like terms.
So if , then .
Let's find y when :
Start with the given equation.
Plug in .
Square to get .
Multiply and to get .
Multiply and to get .
Combine like terms.
So if , then .
----------------------------------------------------
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Now let's make a table of the values we just found.
Table of Values:
| x | y |
| -2 | 6 |
| -1 | 1 |
| 0 | -2 |
| 1 | -3 |
| 2 | -2 |
| 3 | 1 |
| 4 | 6 |
Now let's plot the points:
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Now draw a curve through all of the points to graph :
Graph of
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