I found this excellent site while studying for high school equivalency and I'm getting hooked.Īny help and guidance here would be most appreciated. I have had a life-long hatred of math.just kidding :). Is it possible to extract the standard formula from the graph, and if so how? I may be answering my own question here, but I also noticed that when extracting equations from a line, it seemed I was able to create either the slope intercept or point slope equations, but I had to extract the standard equation from one of the other 2. I am wondering the reason that: a-the standard form is not used as often as the other 2 and b-the use of -A/B to find slope is not mentioned at all. So it seems, by using standard, I can easily determine intercepts and slope. I was able to extract the slope using that my method and it agreed with the other formulas. I was reading that the slope could be determined from the standard formula using: m = -A/B. One reason given was absence of the slope. That formula doesn't seem to be as popular as it's point slope or slope intercept cousins. Excellent learning resource! My question is to do with the use of the standard formula for linear equations.
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