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 574612: Please help! If (x) = 2x -4 and g(x) = x^2 -4x, find each value 1. f(3) -1 ***** I got 2 for an answer f(3)-1 f(3)-1=2(3)-4 6-4=2 answer =2 but... what's the -1 for then? do i do anything with it? Click here to see answer by KMST(1868)

 Question 574700: I need to find the domain of g(x)=(2)/(x^2+x-12) Click here to see answer by reviewermath(507)
 Question 574700: I need to find the domain of g(x)=(2)/(x^2+x-12) Click here to see answer by solver91311(16868)

 Question 575098: If the points (2,3), (3,5), (4,6), and (6,3) are on a graph, what does h(2) equal; h(4) equal; and h(5) equal? Click here to see answer by richard1234(5390)

 Question 576008: state the domain of the composite function. f(x)=x^2+1; g(x)=2x^2+3 Click here to see answer by stanbon(57246)

 Question 576349: I need help understanding how is equal to I've tried to figure out how that is the answer but the factor with the multipilicty of 3 throws me off. Please help me, thank you! Click here to see answer by solver91311(16868)

 Question 576745: Let p, q, and r be three different odd prime numbers. What are LCM (2pq, 2pr, 2qr) and GCF (2pq, 2pr, 2qr)? Justify your answers. Click here to see answer by richard1234(5390)

 Question 577413: find domain of (fg)(x) when f(x)=square root of 6x+2 ang g(x)=square root of 9x-2 Click here to see answer by varun(12)

 Question 577371: Given a function, H(x), explain how to find its components, f(x) & g(x), such that f(g(x))=H(x). Also demonstrate by providing an example and working it out step by step. Explain well and show all work. Click here to see answer by richard1234(5390)

 Question 577936: How Do I Do This? f(x) = 3x - 9 Click here to see answer by jim_thompson5910(28504)

 Question 578252: The perimeter of a square is 4 times the length of one side. Write a function using two variables to represent the situation. Find the perimeter if a side measures of 6 feet. Click here to see answer by Alan3354(30983)

 Question 578734: I know what I pay for a case of water and I know what a distributor will sell it for. How do I calculate how much the distributor must buy it from me for if the distributor needs a 25% markup, 30% markup or 35% markup? Click here to see answer by scott8148(6628)

 Question 578891: 1. For what value of x is the function f(x) = 1 / (-6x-5) undefined? Explain why showing detailed calculations. 2. Provide a function in one variable for you classmates. Provide two values for the function variable that can be used by your classmates to evaluate the function. Click here to see answer by richard1234(5390)

 Question 579168: I need help trying to figure out the min and max of a function x^3-x Click here to see answer by richard1234(5390)

 Question 581648: Find the vertex, the line of symmetry, and the maximum or minimum value of f(x). f(x)=1/2(x+3)^2+6 Click here to see answer by jim_thompson5910(28504)

 Question 581939: Can you help me find the domain of the function 5(x+4)/x^2+x-12 Click here to see answer by jim_thompson5910(28504)

 Question 581944: can you help me simplify (x+2)(x+2)(x-1)is its x^3-x^2+4x+4? Not sure how to simplify when its three terms, i just know how to foil two Click here to see answer by jim_thompson5910(28504)

 Question 581981: How do I find the domain f(x) = x^(4) + 2x^(3) + 3x + 1 Click here to see answer by jim_thompson5910(28504)

 Question 582592: what is domain for f(x)=x-2 divided by 3x+4 Click here to see answer by nyc_function(2733)

 Question 582975: " Given: " f(x) = 3x - 5 " and " g(x) = -5x + 2 1. " Find " f[g(-1)] 2. " Find " g[f(4)] Click here to see answer by stanbon(57246)

 Question 584189: What is the process necessary to predict what the graph of the function f(x) = x^4 - 10x^2 + 9 will look like? Use algebra and graphing to confirm all of your predictions. Make sure you explain each step! Click here to see answer by JBarnum(2044)

 Question 584216: I have a tunnel 20ft. in diameter, it has the capacity to store 38 million gallons of water and delivering flow by gravity to an existing water treatment plant. How long is the tunnel Click here to see answer by ankor@dixie-net.com(15638)