Please help me I really need it

Mathematics

1 answer:

Blababa [14]4 years ago

6 0

The third option is the right one. A standard linear equation is represented by y=mx+c where m is the slope and c is a constant. The point (2,-4) represents (x,y). If you substitute the x value (2) in each of the equations:
For the first choice, you get y= 6 so it's wrong
For the second choice, you get y= -2 so it's wrong as well
For the third choice, you get y= -4. This is the right answer
For the last choice, you get y= 4 which is wrong
Hope this helps, let me know if you have any questions

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yarga [219]

Answer:

One pair of equivalent expressions is:

x - 3y + 12

12 - 3y - 2x + x + 2x

Second,

x + 3y + 12

3x + 2y - 2x + y + 12

third,

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four,

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Step-by-step explanation:

In order to match the equivalent expressions we have to put each expression in its simplest form

So,

$x-3y+12\\\\12 - 3y - 2x + x + 2x\\=12-3y+x\\=x-3y+12\\\\3x + 2y - 2x + y + 12\\=x+3y+12\\\\4y + 3y + 3x - 6y - 10 - 2\\=3x+y-12\\\\x + 3y + 2x - 3x + 7 + 5\\=3y+12\\\\5 + 2y + 7x - 4x + 3y - 17\\=5y+3x-12$