58. Endpoints of diameter: (3,0) and (7, 10)

Trigonometry (11th Edition)
11th Edition
ISBN:9780134217437
Author:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Publisher:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Chapter1: Trigonometric Functions
Section: Chapter Questions
Problem 1RE: 1. Give the measures of the complement and the supplement of an angle measuring 35°.
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use the following information to create an equation for a circle in standard form

PLEASE DO THIS WITHOUT A CALCULATOR. answer must match one of the answer choices. there is only one right answer. if your answer is none of these please check your math that answer choice is wrong.

**58. Endpoints of diameter:** \((3, 0)\) and \((7, 10)\)

In this problem, the endpoints of the diameter of a circle are given as the coordinates \((3, 0)\) and \((7, 10)\). To find the center of the circle, which is the midpoint of the diameter, you can calculate the average of the x-coordinates and the y-coordinates of the endpoints. 

The midpoint formula is:

\[ \left(\frac{x_1 + x_2}{2}, \frac{y_1 + y_2}{2}\right) \]

Substituting the given values:

\[ \left(\frac{3 + 7}{2}, \frac{0 + 10}{2}\right) = \left(\frac{10}{2}, \frac{10}{2}\right) = (5, 5) \]

Thus, the center of the circle is \((5, 5)\).

Additionally, to calculate the radius, use the distance formula to find the length of the diameter, then divide by two:

The distance formula is:

\[ \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2} \]

Substituting the given values:

\[ \sqrt{(7 - 3)^2 + (10 - 0)^2} = \sqrt{4^2 + 10^2} = \sqrt{16 + 100} = \sqrt{116} \]

The length of the diameter is \(\sqrt{116}\), so the radius is:

\[ \frac{\sqrt{116}}{2} = \frac{2\sqrt{29}}{2} = \sqrt{29} \]

This explanation can be accompanied by a graph showing the circle, the diameter with endpoints \((3, 0)\) and \((7, 10)\), and the center at \((5, 5)\).
Transcribed Image Text:**58. Endpoints of diameter:** \((3, 0)\) and \((7, 10)\) In this problem, the endpoints of the diameter of a circle are given as the coordinates \((3, 0)\) and \((7, 10)\). To find the center of the circle, which is the midpoint of the diameter, you can calculate the average of the x-coordinates and the y-coordinates of the endpoints. The midpoint formula is: \[ \left(\frac{x_1 + x_2}{2}, \frac{y_1 + y_2}{2}\right) \] Substituting the given values: \[ \left(\frac{3 + 7}{2}, \frac{0 + 10}{2}\right) = \left(\frac{10}{2}, \frac{10}{2}\right) = (5, 5) \] Thus, the center of the circle is \((5, 5)\). Additionally, to calculate the radius, use the distance formula to find the length of the diameter, then divide by two: The distance formula is: \[ \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2} \] Substituting the given values: \[ \sqrt{(7 - 3)^2 + (10 - 0)^2} = \sqrt{4^2 + 10^2} = \sqrt{16 + 100} = \sqrt{116} \] The length of the diameter is \(\sqrt{116}\), so the radius is: \[ \frac{\sqrt{116}}{2} = \frac{2\sqrt{29}}{2} = \sqrt{29} \] This explanation can be accompanied by a graph showing the circle, the diameter with endpoints \((3, 0)\) and \((7, 10)\), and the center at \((5, 5)\).
**Problem 8.2.58**

Consider the following equations and determine which one represents a circle centered at the point (5, 5):

A. \((x - 5)^2 + (y - 5)^2 = 1\)

B. \((x - 5)^2 + (y - 5)^2 = 116\)

C. \((x - 5)^2 + (y - 5)^2 = \sqrt{116}\)

D. \((x + 2)^2 + (y + 5)^2 = 29\)

E. \((x - 5)^2 + (y - 5)^2 = 29\)
Transcribed Image Text:**Problem 8.2.58** Consider the following equations and determine which one represents a circle centered at the point (5, 5): A. \((x - 5)^2 + (y - 5)^2 = 1\) B. \((x - 5)^2 + (y - 5)^2 = 116\) C. \((x - 5)^2 + (y - 5)^2 = \sqrt{116}\) D. \((x + 2)^2 + (y + 5)^2 = 29\) E. \((x - 5)^2 + (y - 5)^2 = 29\)
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