Thursday

November 27, 2014

November 27, 2014

Posted by **lindsay** on Thursday, May 24, 2012 at 11:27pm.

a. Find the length of AB

b. The gradient and equation of line AB

- geometry -
**HenrComp./yr * 5yrsy**, Friday, May 25, 2012 at 10:33pmGiven: A(1,1) B(3,4), C(3,1).

a. (AB)^2 = (3-1)^2 + (4-1)^2 = 13

AB = sqrt13.

b. m = (4-1) / (3-1) = 3/2.

Y = mx + b

1 = (3/2)*1 + b

b = 1-3/2 = -1/2.

Eq: Y = (3/2)x - 1/2.

- geometry -
**Henry**, Friday, May 25, 2012 at 10:36pmHenry

**Answer this Question**

**Related Questions**

Mathamatics - This question concerns the straight line that passes through the ...

Math - This question concerns the straight line that passes through the points...

Math - How can I determine a value of gradient from a graph if the line is ...

maths - the line passes through the points s(6,6) and T(0,-2) determine the ...

math - i have more than one question so if u no any of the answers please tell ...

Gradient of circle? - A circle has the equation x^2+y^2-4x+6y-12=0 and i have ...

Calculus - Maths - I got a few questions. Hope ya'll can help out. 1) for F(X...

maths - Find the gradient of the straight line that passes through the points (3...

Geometry - Okay heres the pic. There is a plane with points B,D, and E.those [...

Geometry - Hi, For one part of my problem I have had to find the equation of a ...