State the domain and range for 2x – 1.?
816271
Assuming each is equal to y, the domain and range of the first two are all real numbers, since there is no x in a denominator, square root, etc.\n\nHowever the third cannot have x = 1/2 [if the whole 2x-1 is the denominator].  If only the 2 is in the denominator the domain and range are all numbers; if only the 2x is in the denom. the domain is all numbers but 0.  In case 1 , the range is all numbers but zero since a fraction with 1 on the top can never equal zero.  In case 3, the range is all numbers but -1 for a similar reason.  Good luck!
940114
I have no idea what physical domain is. If you're talking about function domains, it's all input values that give you a real output, as in all x values that give a y value.
1071351
domain is the spread for the x values\nrange is the spread for values\nrelation is like a function that ties y to x.\n\nExample: Let  y = sqrt(x)\nas we know that x cannot have negative values but it can have values of 0 or any positive number\nSo, your domain is [0,infinity) or any numbers above 0 and including 0.\nIf x is 0 then y is 0 and if x is a huge number then y is a huge number. Since square roots do not give negative answers, y value can never be negative. So, your range becomes 0 to infinity or [0, infinity)
144380
You got it quite confusing! Did you mean\n(a) y=4/7x-13 or (b) y=4/(7x-13) ??\n\n(a)\n\ny = 4/7x - 13    (-13 is not on the denominator!)\nThe range is the set of all possible values of y and\nthe domain is the set of all possible values of x, but a denominator cannot have a value of 0, so 7x cannot be 0\nand x cannot be 0.\n\nDomain={x/x E R, x is not equal to 0}\nTo get the range, solve for x in terms of y.\n\ny=4/7x-13\n7xy = 4 - 91x\n7xy + 91x = 4\n7x(y + 13) = 4\nx = 4/(7(y + 13))\n\n7(y + 13) cannot be equal to 0, so\n(y + 13) is not equal to 0 \ntherefore, y is not equal to -13\n\nRange={y/y E R, y is not equal to -13}\n\n(b)\n\nUsing the same procedure, you will get\n\nDomain={x/x E R, x is not equal to 13/7)\nRange={y/y E R, y is not equal to 0}\n\nc",
782057
look at a few examples and it will make sense\n\nfor example \n\n02 (where the 2 is small)   -> _ O    (the _ is where a number goes)  (2)
372587
I'm not sure what you are looking for.\n(x-3)/(x+2) does not simplify.\nThe domain is all real numbers except -2.\nThe range is all real numbers except 1.
378538
:-)\n\nANOTHER blood question!\n\n:-)\n\nSee this page for the reference ranges:\n\nhttp://www.uq.edu.au/vdu/HDUReferenceRanges.htm
837800
did u mean square root of (2-x) or 1/(2-x)??\ni wil solve both the cases\n\nif it was sqrt(2-x), the solution is like this\nto find out the domain, we need to find all the values of x for which the function is defined. for a square root function, the only requisite is that the term inside the square root should be non-negative.\nso, the condition is (2-x)>=0, ie., x<=2\nso, the domain becomes (-infinity,2]\nnote that parenthsis, ie., '(' or ')' means that the value is not included in the interval, where as square brackets, ie., '[' or ']' means that the value is included.\n\nnow, if the problem is 1/(2-x), the solution is:\nfor this function to exist, the denominator should be non-zero, which means that (2-x) should not be equal to zero.\nso, x should not be equal to 2\nthe domain is given by  (-infinity,infinity) - {2}\nhere, {2} means the set containing the element 2\nthe domain can also be denoted as  R-{2}, where R is the set of all real numbers.
943888
check domain.com\n\n:> peace
347005
A. If you don't have it yet, download and install Cn3D:\nhttp://www.ncbi.nlm.nih.gov/Structure/CN3D/cn3d.shtml\n\nB. Go to:\nhttp://www.ncbi.nlm.nih.gov/entrez/query.fcgi?CMD=search&DB=domains\nand search for your domains. They are all there, plus alignments of related ones as one structure. Click and view in Cn3D.
1049371
The Domains are    4, -4, -8,and 14. Or, the x values.
918456
domain\nall real x\nx intercept\nputting y=0\n0=x+rt{x]\n-x=rtx\nx^2=x\nx(x-1)=0\nx=0 or 1\nx intercept=(0,0) and (1,0)\ny intercept\nsetting x=0\ny=0\ny intercept=(0,0)\nno symmetry exhibited
1052329
d, the domain is the set of all real numbers except for those values where the function is undefined, such as when evaluating the function would require you to divide by zero.\n\nFor the purposes of this question, only the (x^2 - 49) component is relevant. When x is seven or negative seven, this term will be zero, making the entire denominator zero, and thereby making the function undefined.
1072243
Domain: (-infinity, +infinity)\nRange: (-infinity, +infinity)
173766
same as differnce between 1 and 2
978426
for example:\n\n-1 < 2\nthen\n1 > -2\n\nanother:\n x < -5\nthen\n-x > 5\n\n-2 x > 9\nx< -9/2\n\ns
651114
it would be X<12, with extra line