Question 1156056: 1. Write an equation of the line containing (5,2) and (7,-4). Express the answer in standard form with integer coefficients.
2. Write an equation of the line containing (4,-1) and (-2,-6). Express the answer in standard form with integer coefficients.
3.write an equation of the vertical line passing through (2,7) and graph the line.
4. Graph 3x+6y> 18
4. Graph 5x-4y>8
Answer by Boreal(15235)   (Show Source):
You can put this solution on YOUR website! vertical lines have the same x value, so the equation would be x=2
3x+6y>18
6y>-3x+18
y>(-1/2)x+3
when x and y are both 0 (the origin), we have 0>3, so the origin is the side of the line that is NOT correct. The line should be dashed, too, to show that it is > than but not >=
5x-4y>8
-4y>-5y+8
y<(5/4)x-2, changing the inequality with division by a negative number. The line should be dashed and when the origin (0, 0) is put into the equation, 0 >8, so the the shaded side does NOT contain the origin.
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