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

Consider the line passing through the points (2, 1) and (-2, 3). Find the parametric equation for y if x = t + 1.

- Math -
**MathMate**, Saturday, April 30, 2011 at 8:48pm
Find 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...
- Calculus - Consider the line through the points (3,2,5) and (1,1,1). Consider ...
- 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 ...

More Related Questions