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If: y = 3x^2 +10x +11 and y = 2 -2x -x^2

Then: 3x^2 +10x +11 = 2 -2x -x^2

Transposing terms: 4x^2 +12X +9 = 0

Factorizing the above: (2x+3)(2x+3) = 0 meaning x = -3/2

By substitution into original equations intersection is at (-3/2, 11/4)

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โˆ™ 2018-03-19 12:36:23
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โˆ™ 2018-03-19 12:03:59

It is (-1.5, -2.75).

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Q: What is the point of intersection between the parabolas of y equals 3x squared plus 10x plus 11 and y equals 2 -2x -x squared?
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What is the point of intersection of the parabolas of y equals 3x squared plus 10x plus 11 and y equals 2 -2x -x squared?

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