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bugsbunny27
05.10.2019 •
Mathematics
Aline has a slope of 7 and contains the point (5, −9).
which equations represent the line?
choose all answers that are correct.
a. −7x + y = −44
b. 7x – y = 44
c. (y − 9) = 7(x + 5)
d. (y + 9) = 7(x − 5)
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Ответ:
so we have the oint (5,-9)
(x,y)
one solution is x=5 and y=-9 s
wwe are given the slope which is 7 so subsitue
y=7x+b
subsitute 5 for x and -9 for y
-9=7(5)+b
-9=35+b
subtract 35
-44=b
the equation si y=7x-44
find the one that workd
one of them is A and B and D
Ответ: