anonymous
  • anonymous
Find the angle measurements of the intersections for the two equations f(x) = 4x - 5 and g(x) = 2x^ 2 - 5.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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hartnn
  • hartnn
ok, can you first find the intersection point of f(x) and g(x) ?
hartnn
  • hartnn
for that you'll need to solve the 2 equations simultaneously.
anonymous
  • anonymous
How? Im so sorry , openstudy clicked me off, because of updates.

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hartnn
  • hartnn
yeah, me too... tag me when you come back.
hartnn
  • hartnn
i will list out the steps anyways. 1) find the point of intersection of those two curves, by solving them simultaneously. (say x1, y1) 2) find the first derivative of each curve at that point. derivative of (4x-5) at x=x1 will be say m1 (the slope of the tangent at x=x1) and derivative of 2x^2-5 at x=x1 will be say m2 (the slope of the tangent at x=x1) 3) now you know slopes of both the tangent, just apply the formula to get angle between them tan theta = | (m1-m1) / (1+m1*m2)|
anonymous
  • anonymous
Thanks I have it!

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