Wednesday

July 30, 2014

July 30, 2014

Posted by **Owami Tubatse** on Thursday, July 25, 2013 at 12:08pm.

T(2x;y-2) and U(3x+1;y-2)

- mathematics ,analytical ge0metry -
**Steve**, Thursday, July 25, 2013 at 12:13pmJust use the good old Pythagorean Theorem:

d^2 = ∆x^2 + ∆y^2

= ((3x+1)^2-(2x)^2)+((y-2)-(y-2))^2

= (5x^2 + 6x + 1) - (0)

. . .

- mathematics ,analytical ge0metry -
**owami tubatse**, Thursday, July 25, 2013 at 12:36pmStill confused steve can you please elaborate more PLEASE

- mathematics ,analytical ge0metry -
**Reiny**, Thursday, July 25, 2013 at 2:08pmwhat Steve meant to say was:

d^2 = (3x+1 - 2x)^2 + (y-2 - (y-2))^2

= (x+1)^2 + 0^2

d =√(x+1)^2

= x+1

e.g.

let x = 3, y = 5

then T is (6,3) and U is (10,3)

TU = √(4^2 + 0^2)

= √16 = 4

according to my result, d = 3+1 = 4 , as in the test answer.

- mathematics ,analytical ge0metry -
**Steve**, Thursday, July 25, 2013 at 2:37pmouch! Guess I had too many squares working with me!

What was I thinking?

- mathematics ,analytical ge0metry -
**owami tubatse**, Thursday, July 25, 2013 at 10:25pmThank u guys ...I now understand

**Related Questions**

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

Math - We are learning about proofs. We drew lines between noncollinear points. ...

geometry - We are learning about proofs. We drew lines between noncollinear ...

maths - points A,B,C and D lie on a straight line in the given order. AC=25cm ...

analytical geometry - the points M(6,-8) and E(8,6) are on a circle with radius ...

math - points a,b,c,and d lie on a straight line in the given order. AC = 25 cm ...

math - points a,b,c,and d lie on a straight line in the given order. AC = 25 cm ...

Geometry - Triangles ABC and DEF are congruent. The length of the line segment ...

Math - Quadratics & Analytical Geometry - I have a test tomorrow with a few ...

Geometry - Yes, I'm this desperate. I just have problems with coming up with the...