# 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 119000: write the equation of the line which has the y intercept 1 and slope -2 Click here to see answer by checkley71(8403)

 Question 119031: what is the slope of the line y=3x Click here to see answer by stanbon(57214)

 Question 119016: what are the x and y intercept of the line 10x-9y-24=0 Click here to see answer by checkley71(8403)

 Question 119498: Write and equation to describe each situation, tell what each variable represents. 1. Marie is sending some paperback books to her cousin. Each book weighs 4 ounces. Whe is mailing them in a box that weighs 6 ounces. Variables_________________________________ equation__________________________________ Thanks so much. I need to help my son with his homework Click here to see answer by stanbon(57214)

 Question 119466: Find the domain of the function f(x)= 3 (x-1)(x-2) Click here to see answer by stanbon(57214)

 Question 119578: what does 3x= - Changed by SCOTT CAMPBELL - "What do you need to work out exactly?" Click here to see answer by scottjcampbell(5)

 Question 119971: What is the domian and range of f(x)=3x+2 Click here to see answer by jim_thompson5910(28476)

 Question 119983: Evaluate and give the domain. f(x)= 16-x^2 g(x)= 4-x Find f(x)/g(x) Click here to see answer by jim_thompson5910(28476)

 Question 120001: 2. Take a look at the table below and write out an equation for f(x). x -2 -1 0 1 2 f(x) -5 -2 1 4 7 Click here to see answer by stanbon(57214)

 Question 120026: if f(x)=2x to the second powerand g(x)=x to the second power - 3 find (f g)(x) Click here to see answer by stanbon(57214)

 Question 120024: find all the zeros for f(x)=x to the fourth power - 6 times x to the third power + 9 times x to the second power + 6 times x - 10 if one zero is 3-i Click here to see answer by stanbon(57214)

 Question 119990: A concert promoter charges \$65 per ticket for a concert. The promoter's cost will be \$5500 plus \$4.00 per ticket. Determine the revenue function R. Determine the cost function C. Determine the profit function P. Find the profit for the promoter is he sells 850 tickets. Barbara (I can not receive zip files) Click here to see answer by josmiceli(9645)

 Question 120384: Is y=|x|+2 a function? Why or Why not? Click here to see answer by crissy(1)

 Question 120655: STATE THE DOMAIN AND RANGEOF THE RELATION {(3,2),(-5,7),(-4,3) D= R= Click here to see answer by rapaljer(4667)

 Question 120736: Please help me solve this problem. Given f(x)= 2x + 4, find f(a-4). I would appreciate help with this problem. I am a little confused. Thank you for your help. Click here to see answer by jim_thompson5910(28476)
 Question 120736: Please help me solve this problem. Given f(x)= 2x + 4, find f(a-4). I would appreciate help with this problem. I am a little confused. Thank you for your help. Click here to see answer by rapaljer(4667)

 Question 120992: I am working on a Composition of Functions question. I am thrown off because of the use of fractions within the equation (which haven't been in our practice material). The question that has me stumped follows. (This question comes from an online MAT113 course that I am taking at a local community college. The material comes from Mathematica 6 for Students.) f(g(x)) f(x)= 1/x and g(x) = x/x-1 For the life of me, I can't compute the equation. Thank you in advance for taking the time to help with this problem. Sincerely, Karen Davison Click here to see answer by ankor@dixie-net.com(15622)

 Question 121077: Is there anyone who can help me with this problem? I have worked it and I am not sure if my answer is correct. It is an Algebraic word problem. The sum of two numbers is 32. Their difference is 6. What are the two numbers? The answers I came up with is 16 and 26, is that correct? I would appreciate your help. Thank you Click here to see answer by praseenakos@yahoo.com(507)

 Question 121086: i can't figure out how to come up with an answer to this domain: 1 | 2 | 3 | 4 | n 15 | 45 | 90 | 150 | ? What is n? or rather what is the Equation? Click here to see answer by stanbon(57214)

 Question 121079: I am in need of help with this word problem. Angus invested \$22,000, part at 3% and part at 14%. If the total interest at the end of the year is \$990, how much did he invest at 3%? The amount I got invested at 3% is \$3,000. Is this answer correct? Thank you for your help with this problem. Click here to see answer by stanbon(57214)

 Question 121145: find all the zeros for f(x)=x^3 - 19x - 30 Click here to see answer by edjones(7569)

 Question 121144: find 2f(x) - f(x-1) for f(x)=3x^2 + 5 Click here to see answer by edjones(7569)

 Question 121155: For the line 3x + 6y = 1. Find the slope and the y-intercept. Click here to see answer by roshan2004(1)

 Question 121244: I have done this problem over and over and am not getting the right answer can you help please? The problem is: Freeport McMoRan projects that in 2010 world grain supply will be 1.8 trillion metric tons and the supply will be only three-fourths of world grain demand what will world grain demand be in 2010? Thanks so much for your help Click here to see answer by BrittanyM(80)

 Question 121272: find the value for k so that the remainder for (x^3 + 2x^2 - kx + 5)divided by (x - 2) is 3. Click here to see answer by stanbon(57214)

 Question 121285: from a homework handout it reads, for each natural numbers,n, let P(n)=the number of prime numbers less than n. P(1)=0,P(2)=0,P(3)=1,P(4)=2,P(5)=2,P(6)=3. I have the domain as 1,2,3,4,5,6 and the range as 0,0,1,2,2,3 but what is P(20)? i can't get the answer.i think it is 8 but i think i'm wrong Click here to see answer by solver91311(16868)

 Question 121269: n^2/3 + 2n^1/3 - 15 = 0 solve equation over the set of complex numbers. Click here to see answer by Nate(3500)

 Question 121266: r - 5 square root of r - 36 = 0 solve equation over the set of complex numbers. Click here to see answer by Nate(3500)