Parabolas Intersection
1. **State the problem:** We need to find the points where the graphs of
$$y = x^2 - 4x + 2$$
and
$$y = -x^2 - 8x$$
intersect.
2. **Set the equations equal to find intersection points:** Since both represent $y$, set:
$$x^2 - 4x + 2 = -x^2 - 8x$$
3. **Combine like terms:**
$$x^2 - 4x + 2 + x^2 + 8x = 0$$
$$2x^2 + 4x + 2 = 0$$
4. **Simplify the equation by dividing all terms by 2:**
$$x^2 + 2x + 1 = 0$$
5. **Factor the quadratic:**
$$(x + 1)^2 = 0$$
6. **Solve for $x$:**
$$x = -1$$
7. **Find corresponding $y$ coordinate by substituting $x = -1$ into one of the original equations:**
Using $$y = x^2 - 4x + 2$$:
$$y = (-1)^2 - 4(-1) + 2 = 1 + 4 + 2 = 7$$
8. **Conclusion:** The curves intersect at a single point:
$$(x, y) = (-1, 7)$$