Answer:

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- Write the equation of a line in slope - intercept form that has a slope of -2 and passes through the point ( - 1 , 8 ).
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-  Slope ( m ) = -2
- Given point = ( - 1 , 8 )
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- Equation of a line in slope - intercept form ( i.e y = mx + c )
Let the point ( -1 , 8 ) be ( x₁ , y₁ ) 
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plug the known values :
↦ 
↦ 
Distribute -2 through the parentheses :
↦ 
Transpose 8 to right hand side and change it's sign
↦ 
↦ 
And we're done !
Hope I helped!
♡ Have a wonderful day / night ツ
~TheAnimeGirl ♪
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Not sure what you’re asking, but, if you’re looking for the expanded form... hope that helps?
 
        
        
        
Answer:
D, 
Step-by-step explanation:
the is the value of b in ax -by =-5
D , cant isolate b