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Help! I really need to pass!

Help! I really need to pass!-example-1
User Fulkron
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2 Answers

5 votes

Explanation:

2X + Y = 6 is a required equation

Help! I really need to pass!-example-1
User Unrahul
by
6.1k points
2 votes

Answer:


\huge{ \boxed{ \bold{ \sf{y = - 2x + 6}}}}


\tt{Question} :

  • Write the equation of a line in slope - intercept form that has a slope of -2 and passes through the point ( - 1 , 8 ).


\tt{Step - \: by \: - \: step \: explanation}


\underline{ \underline{ \text{Given : }}}

  • Slope ( m ) = -2
  • Given point = ( - 1 , 8 )


\underline {\underline{ \text{To \: find}}} :

  • Equation of a line in slope - intercept form ( i.e y = mx + c )

Let the point ( -1 , 8 ) be ( x₁ , y₁ )


\underline{ \underline{ \text{Solution}}} :


\underline{ \sf{y - y1 = m(x - x1)}}

plug the known values :


\text{y - 8 = - 2 \{ x - ( - 1) \} }


\text{y - 8 = - 2(x + 1)}

Distribute -2 through the parentheses :


\text{y - 8 = - 2x - 2}

Transpose 8 to right hand side and change it's sign


\text{y = - 2x - 2 + 8}


\boxed{ \text{y = - 2x + 6}}

And we're done !

Hope I helped!

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User Benjamin
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