SOLUTION: Find an equation of the line containing the given pair of points? (-7,-2)and(-5,-9)
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Question 950813: Find an equation of the line containing the given pair of points? (-7,-2)and(-5,-9)
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
:
Find an equation of the line containing the given pair of points? (-7,-2)and(-5,-9)
Find the slope: m =
Assign the given pairs as follows
x1=-7; y1=-2
x2=-5; y2=-9
Find the slope
m =
minus a minus is a plus
m = =
Use the form y = mx + b, where y=-2 and x=-7 and m =
-2 = (-7) + b
-2 = + b
lets us the decimal here
-2 = 24.5 + b
-2 - 24.5 = b
-26.5 - = b
b = -26.5
the equation then
y = x - 26.5
:
:
Confirm this for yourself.
substitute the given x's and ensure they equal the given y's
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