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What is an equation of the line that passes through the point (−7,−8) and is parallel to the line 2x−y=6?

User CKII
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2 Answers

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y=-2x+6 (get it into slope intercept form then plug in y and x values but the slope stays the same)
User Jalanga
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3 votes

Answer:

Explanation:

The equation of a line can be represented in the slope intercept form by the equation, y = mx + c.

Where

m = slope = change in y in the vertical axis/change in x in the horizontal axis

The equation of the given line is

2x−y=6, rearranging it, it becomes

y = 2x - 6

the slope m is 2

If two lines are parallel, it means that they have the same slope. Therefore, the slope of the line

that passes through the point (−7,−8) is also 2 since both both lines are parallel.

To get the intercept, c, we would substitute m =2, y = - 8, x = - 7 into

y = mx + c. It becomes

-8 = 2×-7 + c

-8 = -14 + c

c = -8+14 =6. The equation becomes

y = 2x + 6

User Daouzli
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