- Thread starter
- #1

#### karush

##### Well-known member

- Jan 31, 2012

- 2,820

$\tiny{311.1.5.19}$

find the parametric equation of the line through

$a=\left[\begin{array}{rr}

-2\\0

\end{array}\right],

\, b=\left[\begin{array}{rr}

-5\\3

\end{array}\right]$

ok I know this like a line from 0,0 to -5,3 and $m=dfrac{-5}{3}$

so we could get line eq with point slope formula

but this is be done by parametric eq

this was book section I tried to follow..

anyway.....

$x=a+tb=

\left[\begin{array}{rr}

-2\\0

\end{array}\right]+t

\left[\begin{array}{rr}

-5\\3

\end{array}\right]$

maybe

find the parametric equation of the line through

**a**parallel to b.$a=\left[\begin{array}{rr}

-2\\0

\end{array}\right],

\, b=\left[\begin{array}{rr}

-5\\3

\end{array}\right]$

ok I know this like a line from 0,0 to -5,3 and $m=dfrac{-5}{3}$

so we could get line eq with point slope formula

but this is be done by parametric eq

this was book section I tried to follow..

anyway.....

$x=a+tb=

\left[\begin{array}{rr}

-2\\0

\end{array}\right]+t

\left[\begin{array}{rr}

-5\\3

\end{array}\right]$

maybe

Last edited: