SOLUTION: I have a project due tomorrow. I am to do this equation by substitution and elimination. Then graph the equation. I have done the substitution and elimination. Is there another way
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Question 583090: I have a project due tomorrow. I am to do this equation by substitution and elimination. Then graph the equation. I have done the substitution and elimination. Is there another way that I should do the linear equations to show for the graph?
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
You can use Gauss-Jordan Row Reduction:
Gauss-Jordan Row Reduction Tutorial
Or you can calculate the determinants and use Cramer's Rule:
Determinants Page 1
Determinants Page 2
Cramer's Rule
As for graphing, just take each of the equations and graph it as you ordinarily would -- just do it on the same set of coordinate axes.
John
My calculator said it, I believe it, that settles it
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