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A line passes through (−1, 7) and (2, 10). Which answer is the equation of the line? A. −3x+y=4−3x+y=4 B. −3x+y=16−3x+y=16 C. −x+y=8−x+y=8 D. −x+y=12
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Jul 14, 2017
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A line passes through (−1, 7) and (2, 10).
Which answer is the equation of the line?
A. −3x+y=4−3x+y=4
B. −3x+y=16−3x+y=16
C. −x+y=8−x+y=8
D. −x+y=12
Mathematics
high-school
Palmin
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Answer:
Its -x+y=8.
Explanation:
I took the test. yw.
Goddamnyouryan
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Jul 16, 2017
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Goddamnyouryan
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The slope m of a line through points
and
is given by :
Thus, the slope of the line passing through points
(−1, 7) and (2, 10) is
The equation of a line with slope m passing through a point P(a, b) is given by
(y-b)=m(x-a).
We can consider any of the points (-1, 7), or (2, 10). Let's choose (2, 10):
y-10=1(x-2)
y-10=x-2
y-x=-2+10
y-x=8
Answer:
C. −x+y=8
Simone Porcu
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Jul 20, 2017
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Simone Porcu
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