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aussy123 Group Title

Find the angle measurements of the intersections for the two equations f(x) = 4x - 5 and g(x) = 2x^ 2 - 5.

  • one year ago
  • one year ago

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  1. hartnn Group Title
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    ok, can you first find the intersection point of f(x) and g(x) ?

    • one year ago
  2. hartnn Group Title
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    for that you'll need to solve the 2 equations simultaneously.

    • one year ago
  3. aussy123 Group Title
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    How? Im so sorry , openstudy clicked me off, because of updates.

    • one year ago
  4. hartnn Group Title
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    yeah, me too... tag me when you come back.

    • one year ago
  5. hartnn Group Title
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    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)|

    • one year ago
  6. aussy123 Group Title
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    Thanks I have it!

    • one year ago
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