Friday

September 4, 2015
Posted by **Anonymous** on Friday, August 23, 2013 at 1:00am.

y=-1/4x +4

y=7/4x -4

- Algebra -
**Reiny**, Friday, August 23, 2013 at 8:20ameach is a straight line, so pick any two points for each line

In this case, pick multiples of 4 for your x choice to avoid fractions

e.g. let x = 4, then y = 3 ---> (4,3)

let x = 8, then y = 2 ----> (8,2)

for the 2nd,

let x = 4, then y = 3 ---> (4,3)

let x = 8, then y = 10 ---> (8,10)

your graph should look like this:

http://www.wolframalpha.com/input/?i=plot+y%3D-1%2F4x+%2B4%2C++y%3D7%2F4x+-4

looks like the solution is (4,3), (which I just happened to have chosen by sheer luck)

I just added a domain of 0<x<10 to take a closer look

http://www.wolframalpha.com/input/?i=plot+y%3D-1%2F4x+%2B4%2C++y%3D7%2F4x+-4+%2C+0+%3Cx%3C10