SOLUTION: Find an equation of the line containing the given pair of points (-3, -9) and (-6, -8). Please show me how you're getting your answer, I keep getting this question wrong. Thank yo

Question 121537: Find an equation of the line containing the given pair of points (-3, -9) and (-6, -8). Please show me how you're getting your answer, I keep getting this question wrong. Thank you!!!
Found 2 solutions by Fombitz, algebrapro18:
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
First find the slope using the two points.

The slope-intercept form of a line is

Use your points to determine b.
Using (-3,-9), you get

Answer by algebrapro18(249) (Show Source): You can put this solution on YOUR website!
Find an equation of the line containing the given pair of points (-3, -9) and (-6, -8)

first we need to find the slope between the two points and we do that using this formula:

now plugging in number into that we get

so our slope is -1/3. Now we need to find the equation of the line using 1 of two methods.

Method 1 - Point slop form

y - y1 = m(x-x1)
y + 8 = -1/3(x+6)
y + 8 = -1/3x - 2
y = -1/3 x - 10

Method 2

-8 = -1/3(-6)+b
-8 = 2 + b
-10 =

y = -1/3x - 10

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