2. What are the foci of the ellipse Graph the ellipse (1 point) 15x ^ 2 - 36t ^ 2 = 645

Answer 1

To find the foci of the ellipse, we first need to put the equation in standard form, which is:

((x - h)^2 / a^2) + ((y - k)^2 / b^2) = 1

Where (h,k) is the center of the ellipse, 'a' is the distance from the center to the vertices, and 'b' is the distance from the center to the co-vertices.

To get the equation in this form, we need to divide both sides by 645:

15x^2/645 - 36y^2/645 = 1

Simplifying, we get:

x^2/43 - y^2/(43/5) = 1

So, the center is (0,0), 'a' is sqrt(43), and 'b' is sqrt(43/5).

The distance between the center and each focus is c, where c^2 = a^2 - b^2. Plugging in our values for 'a' and 'b', we get:

c^2 = 43 - 43/5
c^2 = (215/5) - 43/5
c^2 = 172/5
c ≈ 5.2

So, the distance between the center and each focus is approximately 5.2. The foci are located at (±c,0), or approximately (5.2,0) and (-5.2,0).

To graph this ellipse, we can plot the center at (0,0), then sketch the ellipse using the values of 'a' and 'b' as our semi-major and semi-minor axes, respectively. We can also plot the foci at (5.2,0) and (-5.2,0).

(Note: The ellipse is elongated along the x-axis, which means 'a' is greater than 'b'.)

Here is a rough sketch of the graph:


Answer 2

AAAaannndd the bot gets it wrong yet again!

first of all, the equation is for a hyperbola.
15x ^ 2 - 36t ^ 2 = 645
x^2/43 - y^2/17.9 = 1
c^2 = a^2 + b^2 = 60.9
so c = 7.8
The foci are at (±7.8,0)
plus, I suspect there's a typo in the question ...

Answer 3

I apologize for my mistake. Thank you for correcting me and providing the correct solution. The equation is actually for a hyperbola, and the foci are located at (±7.8, 0). I appreciate your feedback and will strive to improve my accuracy in the future.