anonymous
  • anonymous
Solve the following system of equations graphically. y - 4 = 0 2x - y - 2 = 0 What is the solution set? {(-3, -4)} {(-3, 4)} {(3, 4)} what does this mean {()} around the problem ????
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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mathstudent55
  • mathstudent55
Since the question is what is the solution set, the answers are sets. {} are the symbols for a set.
anonymous
  • anonymous
i also need help solving i think let me try
mathstudent55
  • mathstudent55
Have you tried graphing both equations?

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anonymous
  • anonymous
so itd have to be C ???
mathstudent55
  • mathstudent55
First we solve both equations for y. y - 4 = 0 ----------> y = 4 2x - y - 2 = 0 ----------> y = 2x - 2
anonymous
  • anonymous
just so you know i didnt guess i worked it out
mathstudent55
  • mathstudent55
y = 4 is a horizontal line that goes through y = 4. To graph y = 2x - 2, we find two points and use them to graph the equation.
mathstudent55
  • mathstudent55
y = 2x - 2 x | y --------- 0 | -2 2 | 2
mathstudent55
  • mathstudent55
|dw:1378671062136:dw|
mathstudent55
  • mathstudent55
From the graph, it looks like the solution is (3, 4), which is C. You are correct.
anonymous
  • anonymous
thanks for explaing it to dood?chick
mathstudent55
  • mathstudent55
You're welcome.

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