Algebra Pre-Algebra and Basic Algebra Math Forum

 July 21st, 2018, 12:46 PM #1 Newbie   Joined: Jul 2018 From: Phenix City, AL Posts: 2 Thanks: 0 please help me understand this.. equation/ cord plane Hey guys, hopefully y'all can help me. I'm currently enrolled in a GEd school, got all the subjects passed but math, saved that for last because of this reason, need some help find table of values for equations, and some other stuff, but first things first, need to have 12 pages on this done by Monday, homework. I didn't even get one page yet. Here's the problems, I don't want you guys to do my work, please don't think that, I just don't know how to do it, teacher told me to plug it in and add or something totally forgot, thanks a lot. 2x + 5y = 10 y = 2/5x + 1 5x - 4y = 20 Last edited by skipjack; July 23rd, 2018 at 12:09 AM.
 July 21st, 2018, 01:12 PM #2 Global Moderator   Joined: May 2007 Posts: 6,707 Thanks: 674 You need to tell us what you are are supposed to do. 3 equations with 2 unknowns raises questions. Thanks from studiot
 July 21st, 2018, 01:29 PM #3 Newbie   Joined: Jul 2018 From: Phenix City, AL Posts: 2 Thanks: 0 Oh, yeah that would help, sorry supposed to find x and y values and graph. Last edited by skipjack; July 23rd, 2018 at 12:06 AM.
July 21st, 2018, 02:37 PM   #4
Math Team

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Math Focus: Wibbly wobbly timey-wimey stuff.
Quote:
 Originally Posted by MichaelGD3 y=(2/5)x + 1
I gather you are looking for points to plot? If so then pick a few x values and find out what the y's are.

For example:
x = 0 leads to y = (2/5)(0) + 1 = 1. So you have a point (0, 1).
x = 1 leads to y = (2/5)(1) + 1 = 2/5 + 1 = 2/5 + 5/5 = 7/5. So you have a point (1, 7/5).

etc.
Get 6 points (or so), graph them, then connect the dots.

-Dan

July 21st, 2018, 02:38 PM   #5
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From: England

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Quote:
 Originally Posted by MichaelGD3 Oh, yeah that would help, sorry supposed to find x and y values and graph.
Keep going and give us the rest of it.

Last edited by skipjack; July 23rd, 2018 at 12:05 AM.

 July 22nd, 2018, 03:40 PM #6 Global Moderator   Joined: May 2007 Posts: 6,707 Thanks: 674 All three expressions are straight lines. You need to find two points for each.

 Tags cord, equation or, plane, understand

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