nuccioreggie
  • nuccioreggie
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Mathematics
  • Stacey Warren - Expert brainly.com
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chestercat
  • chestercat
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nuccioreggie
  • nuccioreggie
The graph shows two lines, A and B. A coordinate plane is shown. Two lines are graphed. Line A has the equation y equals x minus 1. Line B has equation y equals negative 3 x plus 7. Based on the graph, which statement is correct about the solution to the system of equations for lines A and B? (1, 2) is the solution to both lines A and B. (−1, 0) is the solution to line A but not to line B. (3, −2) is the solution to line A but not to line B. (2, 1) is the solution to both lines A and B.
nuccioreggie
  • nuccioreggie
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whovianchick
  • whovianchick
what do you think? this is the easiest one. A solution to equations is where they intersect, or the point at which they touch. Look at the graph. Where are they touching?

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whovianchick
  • whovianchick
and if that point isn't in the answer choices, then test the other two.
whovianchick
  • whovianchick
you would see if 3,-2 is on A or if -1, 0 is on line A
whovianchick
  • whovianchick
Neither of those points are on line A.
whovianchick
  • whovianchick
So where do they intersect?
whovianchick
  • whovianchick
You do know how to read a graph, correct?
nuccioreggie
  • nuccioreggie
yes i thinks its C
whovianchick
  • whovianchick
the first number is how many you go to the right or left from 0. If it's a positive number, you go to the right. Ex: 4,5- you go 4 to the right. If it's a negative number, you go to the left. Ex: -4,5 you go to the left 4 The second number is going up and down. Positive is up, negative is down
whovianchick
  • whovianchick
Why do you think it's C?
nuccioreggie
  • nuccioreggie
because i thought it made since lol
whovianchick
  • whovianchick
I almost gave you the answer.
whovianchick
  • whovianchick
I did tell you that B and C are NOT the right answer.
whovianchick
  • whovianchick
Those say that those points are on line A, but not line B, but neither of those points are on line A.
whovianchick
  • whovianchick
Come on, think right, don't just guess
nuccioreggie
  • nuccioreggie
i didnt see that sorry
whovianchick
  • whovianchick
is it A or D?
whovianchick
  • whovianchick
and tell me why
nuccioreggie
  • nuccioreggie
a because the first number is how many you go to the right or left from 0. If it's a positive number, you go to the right.
whovianchick
  • whovianchick
|dw:1450115988892:dw|
whovianchick
  • whovianchick
you're close
whovianchick
  • whovianchick
but look at the graph
nuccioreggie
  • nuccioreggie
oh ok so A
whovianchick
  • whovianchick
is it going 1 to the right from 0 or 2 to the right?
whovianchick
  • whovianchick
noooo, you just said A. It's D. But WHY is it D?
nuccioreggie
  • nuccioreggie
no i just said D lol my typing is off my bad
whovianchick
  • whovianchick
ohhhhh gotcha that's good then!

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