Tuesday

September 30, 2014

September 30, 2014

Posted by **Missy** on Saturday, April 30, 2011 at 3:19pm.

- Math -
**MathMate**, Saturday, April 30, 2011 at 8:48pmFind the line that pass through the two points P1(2,1), and P2(-2,3) in rectangular coordinates:

(x2-x1)(y-y1)=(y2-y1)(x-x1)

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

-4(y-1) = 2(x-2)

2y+x=4

Solve for y in terms of x:

y=-x/2 + 2

substitute x=t+1

y=-(t+1)/2+2

=-t/2 + 3/2

So:

x=t+1

y=t/2 + 5/2

**Answer this Question**

**Related Questions**

Calc - Consider the line passing through the points (2, 1) and (-2, 3). Find ...

Calc 2 - Consider the line passing through the points (2, 1) and (-2, 3). Find ...

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

Calculus - Determine two sets of parametric equations for the line passing ...

math - can u help this the qustion is : A circle passes through the points (1,4...

Algebra - Can someone check my answers? 1. Write the equation of the line that ...

steev - can u help this the qustion is : A circle passes through the points (1,4...

pre-calculus - How do you write the standard form of the equation of the line ...

pre-calculus - How do you write the standard form of the equation of the line ...

Calculus - Determine the equation of the line described by the given information...