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A line has a slope of -2 and goes through the point (0, -5). What is the equation of this line, in slope-intercept form?

2 Answers

3 votes

Answer:

y=-2x-5

Explanation:

am i a good person yet :weary: :fingers_pointing_to_each_other:

User Paul Kim
by
4.3k points
1 vote

Answer:

y=-2x-5

Explanation:

For m=-2

For (0,-5) a=0 AND b=-5

(use the equation y-b=m(x-a) to find the equation of the line)

y-b=m(x-a)

(sub the values of m (the slope) and a&b (from the point passing through the line)

y - (-5) = (-2) × ( x - 0 )

(simplify)

y+5=-2(x-0)

(expand the bracket)

y+5 = -2x+0

(subtract 5 for both sides)

y=-2x+0-5

(simplify)

y=-2x-5

User Blckknght
by
4.3k points