2x+y=8;y
What does the semi-colon mean?
Thanks.
2x+y=8;y
What does the semi-colon mean?
Thanks.
“Bondservants, be obedient to those who are your masters according to the flesh, with fear and trembling, in sincerity of heart, as to Christ; not with eyeservice, as men-pleasers, but as bondservants of Christ, doing the will of God from the heart” (Eph. 6:5-6).
Bad proofreading?
From Wiki:
Mathematics
In the argument list of a mathematical function f(x_1, x_2, \dots; a_1, a_2, \dots), a semicolon may be used to separate variables and parameters.
In differential geometry, a semicolon preceding an index is used to indicate the covariant derivative of a function with respect to the coordinate associated with that index.
You can be right or you can be in relationshipPost Thanks / Like - 2 Thanks, 0 LaughingSusan Unger, Shea Zellweger - "thanks" for this post
So maybe it's 8 or y?
“Bondservants, be obedient to those who are your masters according to the flesh, with fear and trembling, in sincerity of heart, as to Christ; not with eyeservice, as men-pleasers, but as bondservants of Christ, doing the will of God from the heart” (Eph. 6:5-6).
@_WelcomeHome_: "Everybody is a genius, but if you judge a fish by its ability to climb a tree, it'll live it's entire life believing it's stupid" -Einstein
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Thanks. It's a pre-test that one of my students is taking.
“Bondservants, be obedient to those who are your masters according to the flesh, with fear and trembling, in sincerity of heart, as to Christ; not with eyeservice, as men-pleasers, but as bondservants of Christ, doing the will of God from the heart” (Eph. 6:5-6).
It might help if you could show us the context. Scan the page for us. On the other hand, if this is in a book, there should be an example to follow. It might simply mean "In the equation 2x+y=8 what does y equal?" If this is the case and you are in an "elementary" algebra book, y=-2x+8. This, then, is the formula for a line on a graph. I don't have enough info to help you.
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Grace and Peace,
Jon Twitchell
Cape Elizabeth Church of the Nazarene | YourChurchWeb.net | YourChurchPianist.net | FuneralChaplain.com
If I saw that in a math text without explanation, I'd solve for Y.
it's the secret symbol for STOP DOING ALGEBRA! ;o )
"I have told you these things, so that in me you may have peace. In this world you will have trouble. But take heart! I have overcome the world." ~ John 16:33
The answer is 42.
"Means we use must be as pure as the ends we seek."
@_WelcomeHome_: "Everybody is a genius, but if you judge a fish by its ability to climb a tree, it'll live it's entire life believing it's stupid" -Einstein
Well I thought it was the right question/problem, my bad :P.
"Means we use must be as pure as the ends we seek."
Except that y=8-2x doesn't give us the same, quickly available information as y=-2x+8.
From the second format of the equation, I can quickly tell you that the slope of the line is -2, and the intercept is +8. There's a reason why the convention is y=mx+b.
Grace and Peace,
Jon Twitchell
Cape Elizabeth Church of the Nazarene | YourChurchWeb.net | YourChurchPianist.net | FuneralChaplain.comPost Thanks / Like - 1 Thanks, 0 LaughingShea Zellweger - "thanks" for this post
At the risk of being labelled "legalistic" and a "fundamentalist" by the "theologians" on board, I have used the commutative property ("The word "commutative" comes from "commute" or "move around", so the Commutative Property is the one that refers to moving stuff around") found at http://www.purplemath.com/modules/numbprop.htm
John Twitchell is correct. In the form y-mx+b, you can visualize the graph of this line instantly and tell immediately where the line crosses the x axis AND they y axis. You can then draw a straight line between the two points and you have an instant line on a graph. The equation y =-2x+8 then allows you to calculate ANY point on the line. You can then calculate ordered pairs which describe points on the line. Ferinstance, y=0 describes the x axis so if you want to find where this line crosses the x axis, you set y = 0 into this equation so 0=-2x + 8
The ordered pair describing where the line crosses the x axis is (?, 0). Solving for x in 0 = -2x + 8, we find that x = 4. The line crosses the x axis at (4,0).
Okay, I'm boring myself too. I'll stop
Now you are going to get some foolish notion that I am obsessive compulsive or some nonsense. Check my work. The original equation is in the form:
ax + by = c so that a=2, b=1, c=8
Go to this calculator and plug those numbers in and you will get the answers I gave above:
http://www.analyzemath.com/Calculato...rceptLine.html
PLEAS!! Someone stop me! Oops... I have to go change a diaper. ... Later