What is the equation of the blue line? Mathswatch question
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Given : Graph
To Find: Equation of Blue Line
Solution:
from Graph :
x = 0 , y = - 1
x = - 1 y = 2
Slope of line = ( 2 - (-1)) /(-1 - 0)
=3 /(-1)
= - 3
y - (-1) = - 3(x - 0)
=> y + 1 = -3x
=> 3x + y + 1 = 0
3x + y + 1 = 0 is the Equation of the line
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