Question

Determine the equation of the ellipse with the following properties: center at point (1,4), a focus at point (5,4) and eccentricity e=2/3

141

likes
707 views

Answer to a math question Determine the equation of the ellipse with the following properties: center at point (1,4), a focus at point (5,4) and eccentricity e=2/3

Expert avatar
Corbin
4.6
107 Answers
Para resolver este problema, siga os passos abaixo:

1. Identifique as coordenadas do centro e do foco da elipse. O centro é \((1, 4)\) e o foco é \((5, 4)\).

2. Determine a distância do centro ao foco, que é \(c\). A distância entre \((1, 4)\) e \((5, 4)\) é:

c = \sqrt{(5 - 1)^2 + (4 - 4)^2} = \sqrt{4^2} = 4

3. Use a excentricidade para encontrar \(a\), que é o semi-eixo maior. A excentricidade é dada por:

e = \frac{c}{a} = \frac{2}{3}

Logo, temos:

a = \frac{c}{e} = \frac{4}{\frac{2}{3}} = 4 \cdot \frac{3}{2} = 6

4. Encontre \(b\), o semi-eixo menor, usando a relação \(c^2 = a^2 - b^2\). Substituindo os valores conhecidos:

4^2 = 6^2 - b^2

16 = 36 - b^2

b^2 = 36 - 16

b^2 = 20

b = \sqrt{20} = 2\sqrt{5}

5. A equação padrão de uma elipse centrada em \( (h, k) \) com semi-eixo maior \(a\) e semi-eixo menor \(b\) é:

\frac{(x-h)^2}{a^2} + \frac{(y-k)^2}{b^2} = 1

Substituindo os valores encontrados:

\frac{(x-1)^2}{6^2} + \frac{(y-4)^2}{(\sqrt{20})^2} = 1

\frac{(x-1)^2}{36} + \frac{(y-4)^2}{20} = 1

Assim, a equação é:

\frac{(x-1)^2}{36}+\frac{(y-4)^2}{20}=1

Portanto, a resposta é:

\frac{(x-1)^2}{36}+\frac{(y-4)^2}{20}=1

Frequently asked questions (FAQs)
Question: Find the vertex of the parabolic graph y = 3x^2 - 2x + 1.
+
What is the amplitude of the cosine function f(x) = cos x? (
+
What is the basis of vectors in a 3D space with the coordinates (2, 1, 0), (0, -3, 1), and (-2, 4, 3)?
+
New questions in Mathematics
1/2x +3 <4x-7
If O(3,-2) is reflected across x = 2. What are the coordinates of O
X^2 = 25
Determine the equations of the recipes that pass through the following pairs of points P1 (2;-1) and p2 (4;-1)
[(36,000,000)(0.000003)^2]divided(0.00000006)
The data set (75, 85, 58, 72, 70, 75) is a random sample from the normal distribution No(µ, σ). Determine a 95% two-sided confidence interval for the mean µ .
prove that if n odd integer then n^2+5 is even
-3(-4x+5)=-6(7x-8)+9-10x
. What will be the osmotic pressure of a solution that was prepared at 91°F by dissolving 534 grams of aluminum hydroxide in enough water to generate 2.784 ml of solution.
Quadratic equation 2X = 15/X + 7
5x+13+7x-10=99
(X+2)(x+3)=4x+18
Determine the Linear function whose graph passes through the points (6, -2) and has slope 3.
A buyer purchased a North Carolina home for $475,250. The seller allowed the buyer to assume his first small mortgage with a loan balance of $110,000. How much is the excise tax paid in the transaction? $951 $729.50 $950.50 $221 none of the above
a) Statistics scores are normally distributed with the mean of 75 and standard deviation of 7. What is the probability that a student scores between 80 and 88
The average undergraduate cost per tuition, fees, room, and board for all institutions last year was $26,025. A random sample of 40 institutions of higher learning this year indicated that the mean tuition, fees, room, and board for the sample was $27,690, and the population standard deviation is $5492. At the 0.05 level of significance, is there sufficient evidence that the cost has increased? (Remember to follow the steps in hypothesis testing)
8/9 divided by 10/6
How many moles are there in 235 grams of potassium thiosulfate pentahydrate? K2S2O3*5(H2O)
A person travels by car from one city to another with different constant speeds between pairs of cities. She drives for 55.0 min at 100.0 km/h, 14.0 min at 65.0 km/h, and 45.0 min at 60.0 km/h and spends 20.0 min eating lunch and buying gas. (a) Determine the average speed for the trip.
f(r) = 1/r+9 find f(x^2) + 1