sbarrick sbarrick
  • 18-12-2016
  • Mathematics
contestada

What is the solution of the system of equations?
y = –2x + 8
y = x – 4

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MathisLif3
MathisLif3 MathisLif3
  • 18-12-2016
you could treat it as a matrix and solve it that way
graph and find intersection
etc.
Answer Link
Mehek
Mehek Mehek
  • 18-12-2016
y = –2x + 8 
y = x – 4

Set them to equal to each other to solve for x.

x - 4 = -2x + 8

3x = 12

x = 4

Plug 4 for x in either equation.
 
y = x – 4

y = 4 - 4

y = 0

So (4, 0)
Answer Link

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