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PLEASE HELP ME!!!! WORTH 10 POINTS!!

Write the point-slope form of the given line that passes through the points (-4, -1) and (3, -3). Identify (x1, y1) as (-4, -1).Include your work in your final answer. Type your answer in the box provided or use the upload option to submit your solution.

PLEASE HELP ME!!!! WORTH 10 POINTS!! Write the point-slope form of the given line-example-1
User AlexTR
by
6.4k points

2 Answers

4 votes
(-4, -1) and (3, -3)

slope m = (-3 + 1) /(3 + 4) = -2/7

y - y1 = m(x - x1)
(x1, y1) as (-4, -1)

equation
y + 1 = -2/7(x +4)
User Eang
by
6.0k points
7 votes

Answer:


y-(-1)=-(2)/(7)(x-(-4))

Explanation:

We know that the line passes through (-4,-1) and (3,-3), where
(x_(1) ,y_(1) ) is
(-4,-1) and
(x_(2) ,y_(2) ) is
(3,-3).

First, we need to find the slope with the formula


m=(y_(2)-y_(1) )/(x_(2)-x_(1) )

Replacing given points


m=(-3-(-1))/(3-(-4))=(-3+1)/(3+4)=(-2)/(7)

Then, we use the slope, one point and the slope-point form


y-y_(1) =m(x-x_(1) )\\y-(-1)=-(2)/(7)(x-(-4))\\ y+1=-(2)/(7)x+(8)/(7) \\y=-(2)/(7)x+(8)/(7)-1\\y=-(2)/(7)x+(8-7)/(7) \\y=-(2)/(7)x+(1)/(7)

The slope-intercept form is


y=-(2)/(7)x+(1)/(7)

The point-slope form is


y-(-1)=-(2)/(7)(x-(-4))

User Mauronet
by
6.3k points
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