Monday

July 28, 2014

July 28, 2014

Posted by **Anonymous** on Friday, August 23, 2013 at 12:24am.

y= 7/4x-4

y= -1/4x+4

- algebra- please help -
**Steve**, Friday, August 23, 2013 at 12:26amI think you mean "solve by graphing"

visit

http://rechneronline.de/function-graphs/

for excellent graphing help.

Be sure to use parentheses for proper grouping.

- algebra- please help -
**Anonymous**, Friday, August 23, 2013 at 12:41amsorry!

can you solve for me? I don't understand how to work the site.

- algebra- please help -
**Steve**, Friday, August 23, 2013 at 4:22amI don't know how you can have trouble at the site. If you just enter

7/(4x-4)

and

-1/(4x+4)

into the first two function boxes, and click "Draw", you will see the graphs and where they intersect. That appears to be (-3/4,-1).

Algebraically, set them equal:

7/(4x-4) = -1/(4x+4)

7(4x+4) = -1(4x-4)

28x+28 = -4x+4

32x = -24

x = -3/4

so, y = 7/(-7) = -1

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