# Questions on Algebra: Functions, Domain, NOT graphing answered by real tutors!

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 Algebra: Functions, Domain, NOT graphing Solvers Lessons Answers archive Quiz In Depth

 Question 255962: An open box is made from an 8-by-10-inch rectangular piece of cardboard by cutting squares from each corner and folding up the sides. If x represents the side length of the squares, which of the following is a function giving the volume V(x) of the box in terms of x? Click here to see answer by NRobinson(4)

 Question 256029: State the domain of the following relation by clicking on the symbols to make the given answer correct. {(x,y):y=x} Domain {x: x R, x Click here to see answer by drk(1908)

 Question 256075: Please help me with this Point A (-4,1) is in the standard (x,y) coordinate plane. What must be the coordinates of point B so that the line x=2 is the perpendicular bisector of AB? Click here to see answer by richwmiller(9143)
 Question 256075: Please help me with this Point A (-4,1) is in the standard (x,y) coordinate plane. What must be the coordinates of point B so that the line x=2 is the perpendicular bisector of AB? Click here to see answer by solver91311(16897)
 Question 256075: Please help me with this Point A (-4,1) is in the standard (x,y) coordinate plane. What must be the coordinates of point B so that the line x=2 is the perpendicular bisector of AB? Click here to see answer by stanbon(57377)

 Question 256093: Please help me with this. Listed below are 5 functions, each denoted g(x) and each involving a real number constant c>1. If f(x)=2x ( 2 exponent x), which of these 5 functions yields the greatest value for f(g(x)), for all x>1? g(x)=cx g(x)=c/x g(x)=x/c g(x)=x-c g(x)=logcx Click here to see answer by stanbon(57377)

 Question 256094: please help me with this If the function f satisfies the equation f(x+y)=f(x)+f(y) for every pair of real numbers x and y, what are the posible values of f(0)? any real number any positive real nuber 0 and 1 only 1 only 0 only and why? Click here to see answer by CharlesG2(828)

 Question 256135: state the function? input x -3 0 3 6 output y 1 0 -1 -2 Click here to see answer by drk(1908)

 Question 256123: what is the smallest positive value for x where y= sin 2x reaches its maximum? Click here to see answer by drk(1908)

 Question 256149: what is g-f(x) where f(x) is x+1 and g(x) is x^2-1 Click here to see answer by drk(1908)

 Question 256171: given the domain{-1,0,2} Find the range values for the equation. a. f(x)=-2x-4 -2(-1)-4 2+-4 -2 b. -2(0)-4 0+-4 -4 c. -2(2)-4 -4+-4 -8 Click here to see answer by Edwin McCravy(8909)

 Question 256179: my son is having problems with this equation i think it is titled elemination this is how the problem is written: 5x-y=13 2x-y=1 Click here to see answer by Alan3354(30993)

 Question 214031: if f(a+b) = f(a) + f(b) for all real numbers. Show how f(2a) = 2*f(a) and show how f(0) = 0. Click here to see answer by Doni305(1)

 Question 256350: NEED HELP PLEASE!! Give an example of a function whose domain is the set of integers and whose range is the set of positive integers. Click here to see answer by palanisamy(496)

 Question 256438: Take a look at the table below and write out an equation for f(x). Show your work. Click here to see answer by volfkr(1)

 Question 256549: Can you please do a step by step informative answer for the following question? I am having to take a placement test and cannot for the life of me remember how to perform a function!!! Thanks! The whole question goes as follows: Listed below are 5 functions< each denoted g(x) and each involving a real number constant c>1. If f(x)=2 to the x, which of these 5 functions yeilds the greatest value for f(g(x)), for all x>1? a. g(x)=cx b. g(x)=c/x c. g(x)=x/c d. g(x)=x-c e. g(x)=logsubscriptc x HELP! Click here to see answer by drk(1908)

 Question 257222: what is the domain of the relation (1,4)(0,-2)(2,3)(-1,4)(-3,0) Click here to see answer by drk(1908)

 Question 257320: writ an equation of the line containing the given point and parallel to the givenline. express your answer in the form y=mx+b. (6,9), x+6y=7.... the equation of the line is y = Click here to see answer by jim_thompson5910(28595)

 Question 257400: f(x)=-10x-8 What is the y intercept (0, ) The Slope is -10 Click here to see answer by richwmiller(9143)

 Question 257618: Suppose that f(x) = ax + b, where a and b are real numbers. Given that f(f(f(x))) = 8x + 21, what is the value of a + b? Click here to see answer by jim_thompson5910(28595)

 Question 257620: What is the product of 25 and 52 ? Click here to see answer by shahbazn(6)

 Question 257652: Take a look at the table below and compute an equation for f(x). x -3, -2, 1, 3 4 f(x) 0, 3, 12, 18, 21 Click here to see answer by Alan3354(30993)

 Question 257728: Find the function value. F(x) = x to the third power. F(-9) = Click here to see answer by drk(1908)

 Question 257746: Find the domain and range of the following function: f(x)= square root(x-1/x+1) Click here to see answer by jsmallt9(3296)

 Question 258094: The perimeter of a rectangle is 54. If the length is three more than twice the width, what are the dimensions of the rectangle? Click here to see answer by checkley77(12569)

 Question 258929: Here’s the problem: For a car renting for \$15 per day plus \$.10 per mile, the cost for 1 day is C(m)=15+o.10m (dollars) where m is the number of miles driven. If the person paid \$35.30 for 1 day’s rental, how far did the person drive? Now I can look at this and know what the answer is, but I have to solve it using L(a)=-2/3+150 I not only do not understand how to do it – I don’t understand the function. Could you guide me through this please? Click here to see answer by stanbon(57377)

 Question 258971: What are the domains and ranges of this function? Is it even a function at all? Thank you for the help because I am really stuck on this problem. Click here to see answer by stanbon(57377)
 Question 258971: What are the domains and ranges of this function? Is it even a function at all? Thank you for the help because I am really stuck on this problem. Click here to see answer by richwmiller(9143)

 Question 259095: The area of my question is the evaluating of a function. I am at a loss when even beginningto plug in the numbers where they need to go. The problem reads: Given P(x)=4x+7, write P(-2+h)-P(-2) in simplest form. Thanks tons any assistance is greatly appreciated. Click here to see answer by Edwin McCravy(8909)

 Question 259163: My question is in regards to graphing linear functions. I need to graph y=2/3x-4 I am unsure how to graph it. Could you also explain why I graph it the way I do based on that formula. Thanks a lot. ANy help is appreciated. Click here to see answer by rfer(12662)

 Question 259139: I have a question concerning exclusion, domain and function. THe question reads: What values are excluded from the domain of the function: H(x)=x-2/x+2 Any help is greatly appreciated Click here to see answer by Fombitz(13828)

 Question 259181: show work and solve f(x)=4x-7 difference quotient (f(3+h)-f(3))/ h h is not equal to 0 Click here to see answer by Fombitz(13828)

 Question 259760: I need help with this on please For the function, f(x) = 3x + 6, find f( -1) Click here to see answer by richwmiller(9143)

 Question 259815: Mountainside Fleece sold 40 neck warmers. Solid color warmers sold for \$9.90 each and colored ones sold for \$12.75 each. In all \$421.65 was collected. How many of each were sold?! Click here to see answer by drk(1908)