How to Solve a System of Equations with a Parabola and Ellipse?

AI Thread Summary
To solve the system of equations involving a parabola and an ellipse, start by rearranging the ellipse equation to express x^2 in terms of y: x^2 = 21 - 6y^2. Substitute this expression into the parabola equation y = 5x^2 + 1 to obtain a new quadratic equation in y. Solve this quadratic equation to find the corresponding y values, and then use these to find the x values. Finally, verify that all solutions satisfy the original equations to ensure accuracy. This method effectively finds the intersection points of the parabola and ellipse.
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Homework Statement



y = 5x^2 + 1
x^2 + 6y2 = 21


Homework Equations



quadratic formula

The Attempt at a Solution



I am not quite sure how to solve algebraically...
My parabola is this
x|y
0 1
1 6

ellipse
x|y
0 | 1.87
4.5 | 0

How can I manipulate the formula to solve the points which the ellipse crosses the parabola
 
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Try solvng for x^2 and plugging that into one equation. Then plug in each y solution to get 2 corresponding x solutions. At the end, check to make sure all your answers work in the original equations
 
Not sure what you mean... =/
 
Rearrange your second equation to give x^2=21-6y^2, then substitute this into the first equation y=5x^2+1. You will obtain a quadratic equation in y which you should be able to solve.
 

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