Answer :
Given: The y - intercept = - 2.
The line passes through ( - 1,5).
Formula to be used: y = mx + c where m is the slope of the line and c is the y - intercept.
The equation of the line is y = mx + ( - 2) = mx - 2.
Now, this line passes through ( - 1,5).
5 = m( - 1) - 2 = - m - 2 i.e. m = - (5 + 2) = - 7
y = ( - 7)x + ( - 2) = - 7x - 2 i.e.7x + y + 2 = 0
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