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tabyers2645
14.12.2019 •
Mathematics
Write an equation for the line that is parallel to y = −2x and passes through the point (0, −7). y=2x-7
y=-2x+7
y=2x+7
y=-2x-7
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Ответ:
y = -2x - 7
Step-by-step explanation:
Call
y = mx + b
the unknown line. We must determine m and b.
Since the line is parallel to y = −2x, our unknown line has the same slope m=-2
So
y = -2x + b
Since our line passes through (x,y) = (0, -7)
-7 = -2(0) + b ===> b = -7
Hence the line we are looking for is
y = -2x - 7
Ответ:
20 degrees. i have a protractor, and its really helpful! you should use one.