# geometry

the vertices of ABC are A(1,1) B(7,3) and C(2,6) write and equation of the line that contains the median from c to ab

1. 👍 0
2. 👎 0
3. 👁 152
1. That line must pass through c (2,6) and the midpoint of ab, which is (4,2)

The slope is (6-2)/(2-4) = -2
y = -2 x + b. Now solve for b, by requiring that

6 = (-2)(2) + b
b = 10 Therefore

y = -2x + 10

1. 👍 0
2. 👎 0
posted by drwls

## Similar Questions

1. ### Math

In an isosceles triangle, the perimeter is 8 more than 2 times on of the legs. If the perimeter is 28 in, find the length of the base. A. 16 in B. 18 in C. 10 in D. 8 in Given triangle ABC with A(-3, 2), B(-1, -4), and C(4, 1),

asked by SkatingDJ on January 14, 2016
2. ### Geometry

The vertices of ∆ABC are A (-2,5), B(-2,4), and C(-5, 3). If ∆ABC is reflected across the line y=-2 to produce the image ∆A’B’C, find the coordinates of the vertex A’ if ∆ABC is reflected across the line x= -2.

asked by Colleen on October 7, 2016
3. ### MATH

A(2,1) , B(4,3) and C(3,5) are the vertices of a triangle ABC. If r1 represents the reflection in X axis and r2 represents the reflection in the line x=5, find the image of triangle ABC under combined transformation r2 o r1.

asked by clive on January 26, 2016
4. ### Math

This question makes reference to an orthonormal basis (i,j), and an origin O. 1. Consider the triangle ABC, with vertices A(0,-2), B(9,1), C(-1,11). Find: a) a cartesian equation of the altitude from C; b) a cartesian equation of

asked by Anonymous on February 27, 2008
5. ### Geometry HOMEWORK HELP ME PLEASE!

Draw the triangle with vertices D(-2,1), U(4,9), and E(10,1) On a Graph. 2. Find DU, UE, AND DE. (Distance) 3. Classify Triangle DUE by its sides. 4. Write the standard form of the equation of each line: DU, UE, and DE.Also, find

asked by Brian on March 20, 2008
6. ### Geometry

Within an orthonormal system consider points A(1,4) B(5,1) C(4,8) (a)Calculate the angle ABC (b)Show that 3x+4y-19=0 is an equation for line L which passes through A and B (c)Find a vector equation for line L (d)(i)give an

asked by Anonymous on May 4, 2008
7. ### Math

Triangle ABC has vertices A (-4,-2), B (-1,3), and C (5,0). Triangle ABC is rotated 180 degrees counterclockwise about the origin to form triangle A'B'C'. a. what are the coordinates of the vertices of triangle A'B'C'? b. How

asked by Chill on August 26, 2019
8. ### Math

Triangle ABC has vertices A(–4,–2), B(–1,3), and C(5,0). Triangle ABC is rotated 180° counterclockwise about the origin to form triangle A′B′C′. What are the coordinates of the vertices of the triangle A′B′C′?

asked by Elder on September 9, 2019
9. ### Geometry

7.Given the vertices of ∆ABC are A (2,-5), B (-4,6) and C (3,1), find the vertices following each of the transformations FROM THE ORIGINAL vertices: d. Rx = 3 e. T f. r(90◦, o) I did already post this, but I forgot to bookmark

asked by Eolhc123 on July 2, 2018
10. ### Geometry

7.Given the vertices of ∆ABC are A (2,-5), B (-4,6) and C (3,1), find the vertices following each of the transformations FROM THE ORIGINAL vertices: d. Rx = 3 e. T f. r(90◦, o) I did already post this, but I forgot to bookmark

asked by Eolhc123 on July 2, 2018

More Similar Questions