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What is the slope-intercept equation of the line below?

What is the slope-intercept equation of the line below?-example-1

2 Answers

3 votes
D. y= -2x-1
Hope this helps :))
User Vignesh VS
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8.1k points
6 votes

Answer: The right option is D: y = -2x - 1

Explanation:

We can see that the line pases through the points (0, -1) and (-1, 1)

So the slope of this line is:


s = (-1 - 1)/(0 - (-1)) = -2

this means that our equation is of the form:

y(x) = -2x + b

where b is the y-intercept.

We already know that y(0) = -1 = -2*0 + b = b

so b= -1.

then the equation of the line is y(x) = -2x - 1

User Tom Bennett
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8.0k points