josebienka
01.09.2019 •
Mathematics
Which of the following represent(s) an equation of the line passing through the points a(5, 6) and b(4, 8). select all that apply.
1.)y = -2x – 4
2.)y = -2x + 16
3.)y – 8 = -2(x – 6)
4.)2x + y = 16
5.)2x + y = -16
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Ответ:
m = y2 - y1 / x2 - x1
m = 8 - 6 / 4 - 5
m = 2 / -1
m = -2
Now, y - y1 = m(x - x1)
y - 6 = -2(x - 5)
y - 6 = -2x + 10
y = -2x + 16
In standard form it would be:
2x + y = 16
In short, Your Answers would be Option B & D
Hope this helps!
Ответ:
So our 1/2 inch grows by a factor of 9 because 4 1/2 ÷ 1/2 = 9 Think how many 1/2 dollars are in 4 1/2 dollars. (Answer is 9)
So our 8 4/9 in the catalog has to grow the same
8 4/9 x 9 = 8 4/9 x 9/1 = 76/9 x 9/1 or 76 inches which is 6 ft 4 inches.
(76 ÷12 = 6 r4)