SOLUTION: Find the equation (in standard form) of the line through (1, –7) and (4, –1). Match your result to the correct answer below.
A) 2x + y = 9
B) x-2y=18
C) 2x – y = 9
D) x-2y=9
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Coordinate Systems and Linear Equations
-> SOLUTION: Find the equation (in standard form) of the line through (1, –7) and (4, –1). Match your result to the correct answer below.
A) 2x + y = 9
B) x-2y=18
C) 2x – y = 9
D) x-2y=9
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Question 149285: Find the equation (in standard form) of the line through (1, –7) and (4, –1). Match your result to the correct answer below.
A) 2x + y = 9
B) x-2y=18
C) 2x – y = 9
D) x-2y=9 Answer by Alan3354(69443) (Show Source):
You can put this solution on YOUR website! Find the equation (in standard form) of the line through (1, –7) and (4, –1). Match your result to the correct answer below.
A) 2x + y = 9
B) x-2y=18
C) 2x – y = 9
D) x-2y=9
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Determinants is the easiest way
|x y 1|
|1 -7 1| = 0
|4 -1 1|
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x*(-7 - (-1)) - y*(1-4) + 1*(-1 - (-28)) = 0
-6x + 3y + 27 = 0
2x-y = 9 (C)
