Use the x-intercept method to find all real solutions of the equation. x^3-7x^2+4x+12=0
2 answers:
Answer:
a.
Step-by-step explanation:
The given equation is
To find all real solutions using the x-intercept method, we to graph the corresponding function using a graphing tool.
The corresponding function is;
The real solutions to , are the x-intercepts of the graph of the corresponding function.
From the graph the x-intercepts are
(-1,0),(2,0) and (6,0).
Therefore the real solutions are
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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 :
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Distribute -2 through the parentheses :
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Transpose 8 to right hand side and change it's sign
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And we're done !
Hope I helped!
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~TheAnimeGirl ♪
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