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The solution of a system of linear equations is (4,-2). a. draw two lines that could represent this system of equations. b. write the system you created. c. solve your system us…
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The solution of a system of linear equations is (4,-2). a. draw two lines that could represent this system of equations. b. write the system you created. c. solve your system us…
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May 22, 2018
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The solution of a system of linear equations is (4,-2).
a. draw two lines that could represent this system of equations.
b. write the system you created.
c. solve your system using any method, besides graphing, to prove/check your system is correct.
Mathematics
high-school
Nathan Wheeler
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Nathan Wheeler
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y=-x+2
2y=x-8
these two lines both go through the point (4,-2)
solve: substitute the y in the second equation with (-x+2):
2(-x+2)=x-8
-2x+4=x-8
add 2x on both sides:
4=3x-8
add 8 on both sides: 12=3x
divide by 3 on both sides: x=4.
find y: y=-x+2=-4+2=-2
the solution is (4,-2)
Baste
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May 27, 2018
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