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jadeafrias
16.07.2019 •
Mathematics
Write the standard form of the equation of the line described. through: (2,4), perp to y=-2/7x-5
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Ответ:
The second line passes through (2,4) and is perpendicular to the first line.
Therefore,
The gradient of first line = -1/m1 = -1/(-2/7) = 7/2
Then, the equation of the second line is;
y = 7/2x+b
Substituting for the coordinates given;
4 = 7/2(2)+b
4 = 7+b
b = 4-7 = -3
Therefore, the equation of the second line is;
y = 7/2x - 3
In standard form, the equation this equation can be written as:
y(2) = 7x - 3(2)
2y = 7x - 6
7x -2y - 6 = 0 > standard form.
Ответ:
10,000 + 7,000 + 900 + 20 + 4
Step-by-step explanation: