Find the points of intersection of the curves y=2sin(x-3) and y=-4x^2+2?

In summary, The conversation discusses different methods for solving a problem without using a graphing calculator or the "Trace" function. The options mentioned include numerical methods, approximations, and special functions. The speaker also mentions being unfamiliar with some of these methods. The conversation ends with a suggestion to use iterative methods for converging to the desired solution.
  • #1
Yummys
2
0
Can someone do it without using a graphing calculator? The question specifically states not to use "Trace". I don't understand how to do it algebraically, and I'd love it if someone could teach me. Please and thanks!
 
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  • #2
Well you can't solve it algebraically, you can solve it using a numerical method or if you use approximations or maybe some special function (which I am most likely unfamiliar with).
 
  • #3
rock.freak667 said:
Well you can't solve it algebraically, you can solve it using a numerical method or if you use approximations or maybe some special function (which I am most likely unfamiliar with).

A numerical method? Like, plugging in numbers? Sorry I'm lost.
 
  • #4
Yummys said:
A numerical method? Like, plugging in numbers? Sorry I'm lost.

Do you know bisection method? Newton's method?
 
  • #5
Yummys said:
A numerical method? Like, plugging in numbers? Sorry I'm lost.

You can use iterative methods which essentially like guessing but the iterations would converge to the points you want to a certain degree of accuracy.
 

FAQ: Find the points of intersection of the curves y=2sin(x-3) and y=-4x^2+2?

What are the points of intersection of the given curves?

The points of intersection can be found by equating the two equations and solving for x. This will give us the x-coordinates of the points of intersection. To find the y-coordinates, substitute the obtained x-values into either of the original equations.

How many points of intersection are there between the two curves?

The number of points of intersection between two curves can vary. In this case, since one of the curves is a quadratic equation, there can be a maximum of two points of intersection.

Can the points of intersection be imaginary?

Yes, it is possible for the points of intersection to be imaginary. This means that the curves do not intersect at any real points. To determine if the points of intersection are imaginary, solve the equations and check if the discriminant is less than 0.

How can I graphically find the points of intersection?

To graphically find the points of intersection, plot both curves on the same coordinate system and visually determine where they intersect. This method may not be as accurate as solving the equations algebraically, but it can give a good estimate of the points of intersection.

Is it possible for the two curves to not have any points of intersection?

Yes, it is possible for the two curves to not have any points of intersection. This means that the two curves do not intersect at any points and are parallel or do not intersect at all. This can be determined by solving the equations and checking if they have any common solutions.

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