Tuesday

September 30, 2014

September 30, 2014

Posted by **John** on Monday, October 15, 2007 at 5:56pm.

Drawing a blank on this one, not sure where to start.

Find the equation, in standard form, with all integer coefficients, of the line perpendicular to x + 3y = 12 and passing through (9, -5).

I have half a solution to this one:

Solve the system of equations using the substitution method.

If the answer is a unique solution, present it as an ordered pair: (x, y). If not, specify whether the answer is “no solution” or “infinitely many solutions.”

4x + y = 4

2x + 8y = 0

First I did

4x - 4x + y = 4 - 4x

y = 4 - 4x

then

2x + 8(4-4x) = 0

2x + 32 - 32x = 0

2x + 32 - 32x = 0-32

2x - 32x = -32

-30x = -32

-30x/30 = -32/30

x = 32/30

x = 16/15

then

y = 4 - 4x

y = 4 - 4(16/15)

This is where I am stuck...

So i got x = 16/15 an y = ?

**Answer this Question**

**Related Questions**

Algebra - Still need help on this one Drawing a blank on this one, not sure ...

Algebra - Two more Algebra questions : Having some difficulty with these. ...

Algebra - Find the equation, in standard form, with all integer coefficients, of...

Algebra - I know that standard form is Ax+By=C, but I'm not really sure how to ...

algebra - what is the equation of the given line in standard form. use integer ...

math - Find equation of the line that passes through the points (2/3,-5/4) and...

math - Find equation of the line that passes through the points (2/3,-5/4) and...

math - Find the equation of the line that passes through the points (2/3, -5/4)...

algebra - I have a few questions that I don't understand hope someone can help. ...

math - write an equation in standard form with integer coefficients for the line...