Posted by **Megan** on Wednesday, August 23, 2006 at 8:35pm.

(4,-2) and (2,-8) lie on the line Ax-2By = 28. What is the value of A?

SOMEONE PLEASE HELP ME!!

THANK YOU SOOOO MUCH!

4,-2) and (2,-8) lie on the line Ax-2By = 28. What is the value of A?

Put the points in. First one.

A4-2B(-2)=28

4A+4B=28

A+B=7 call this equation 1)

second point:

A2-2B(-8)=28

2A+16B=28

A+8B=14 call this equation 2)

Now you have two equations...

A+B=7

A+8B=14

Now solve for A and B by any number of methods.

## Answer this Question

## Related Questions

Algebra 2 - 1. Give 3 points that lie on the line 4x-y=6. 2. Give 3 points that ...

Algebra 2 - 1. Give 3 points that lie on the line 4x-y=6. 2. Give 3 points that ...

Algebra 2 - 1. Give 3 points that lie on the line 4x-y=6. 2. Give 3 points that ...

English - I need a opening line which will grab my reader's attention right away...

Algebra - which of the following is true bout a trend line for data? a- the ...

polynomial - can someone solve this one aswell? ax + 2ay + bx + 2by a(x + 2y) + ...

Math - Rewrite the following definition as a biconditional: Points that lie on ...

Math - Use the distance formula to determine whether the points lie on the same ...

Math: Algebra - The points (5,2), (-10,-2), and (t,01) lie on the same line. ...

math - multiply -x^2by-x^2 + 4x – 2