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topjm [15]
3 years ago
13

A system of equations is graphed on the coordinate plane.

Mathematics
1 answer:
densk [106]3 years ago
3 0
-x+5=2x-1
+x +x
5=3x-1
+1 +1
6=3x
/3 /3
2=x

first you take both equations and set them equal to each other because they both equal Y then you add x to both sides to eliminate it from one side. next you add 1 to both sides so that you have 6 equals 3x. lastly you divide both sides by 2 to get your final answer x equals 2.

y=2x-1
y=2•2-1
y=4-1
y=3

when solving for y you have to choose one of the equations and substitute the answer you got for x in which is 2. Then you solve it like a regular equation and multiply first 2 by 2 and lastly subtract 1 from 4 which leaves you with an answer of y=3.

The coordinate point would be (2,3) because x=2 and y=3.
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Reflections across the line y = -x always go by the rule (-y, -x). We can use this rule to get our answer here. We are given the aftermath of the reflection coordinates, which are <span>A'(-1, 1), B'(-2, -1), and C'(-1, 0). All we have to do now is switch up the coordinate values and multiply them by -1. Here is the work - 
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