# Questions on Algebra: Rational Functions, analyzing and graphing answered by real tutors!

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 Algebra: Rational Functions, analyzing and graphing Solvers Lessons Answers archive Quiz In Depth

 Question 454352: Find the indicated values of the function. g(x) = sqrt(x+4)-2 g(-2) This is what I tried but I'm not sure it's right. g(-2) = sqrt(-2+4) -2 = sqrt(2) - 2 Can someone tell me if this is the right answer? Click here to see answer by richard1234(5390)

 Question 454397: Please help me solve this equation I'm having problems in Algebra 2. I have 4 problems I need help with sir I was not sure if I could send all 4. eja 3x - 3 ______________ 3x + 18 Click here to see answer by stanbon(57409)

 Question 454842: 6 -2 -5 - = - b b-3 Click here to see answer by stanbon(57409)

 Question 454946: I am ending up with a quadratic that isn't quite working for me... Here is my problem: (x+1)/(x-1) = -1/(x+3) + 8/(x^2+2x-3) Click here to see answer by edjones(7569)

 Question 455178: You and your 50 coworkers decide to play a game that consists of flipping a coin once for each coworker. if the flip of the coin for the particular coworker results in head, you will have to pay them \$1. If it results in a tail, neither party has to pay anything. Assume that the coin you are using is a fair coin (i.e. the probability of getting a head or a tail is equal to 0.5) the probability that you will not have to pay more than \$18, but less than \$30 Click here to see answer by stanbon(57409)

 Question 455310: Please help me figure out how to do these problems. Find the value of "a" for which the graph of y = ab^x is a horizontal line. Find the value of "b" for which the graph of y = ab^x is a horizontal line. I'm a long time out of calculus III and even longer away from Algebra II. It seems to me that a horizontal line is where y stays the same no matter what ab^x is but this doesn't help me find the answer. Thanks for help. Click here to see answer by scott8148(6628)

 Question 455510: hello :) i am having difficulty on this problem, the directions are to "rearrange and graph it". i think it will turn out looking like a hyperbola. -2x^2 + 4y^2 - 8x -20y + 61 = 0 thank you! Click here to see answer by Gogonati(809)

 Question 455683: what is 46:54 the ratio as a fraction in simplest form ? Click here to see answer by stanbon(57409)

 Question 455773: The parent function for the graph is of the form y=ab^x. Write the parent function. Then write a function for the translation indicated. Translation:right 4 units, up 2 units Click here to see answer by stanbon(57409)

 Question 455985: How in the world do you solve this rational equation using cross-multiply/ Lowest Common Denominator (LCD): 1/2x + 1/4x = 7/8x 1 over 2x PLUS 1 over 4x EQUALS 7 over 8x Click here to see answer by Alan3354(30993)

 Question 456370: I really need help multiplying rational expressions. I have tried it, i just mainly need to know if i have done the problem correctly; if not, could you please help me to find the answer? 4x^3y^5/3x^2y^4 * 9x^3y^2/12xy This is what I did. 1. 4x^3y^5/3x^2y^4 * 9x^3y^2/12xy 2. 45x^6y^7/3x^3y^5 3. 3*3*5*x*x*x*x*x*x*y*y*y*y*y*y*y/3*x*x*x*y*y*y*y*y 4. 15x^3y^2 Click here to see answer by Alan3354(30993)

 Question 456428: Why does x squared + 4 have no zeros? Click here to see answer by rfer(12675)

 Question 456654: In the equation x/(x - 6) = 1/(x - 4) why is it true that your solution could never be x = 6 or x = 4? Click here to see answer by rfer(12675)

 Question 456912: find the inverse of: f (x) = 4x^ - x^ _________ x^ Click here to see answer by spacesurfer(12)

 Question 456953: 1 over 4 plus 1 over x equals 3 over 8 Click here to see answer by algebrahouse.com(1079)

 Question 456999: 4 divided by 1 plus the square root of 3 Click here to see answer by Gogonati(809)

 Question 457569: I need to find the domain and range of T(t)= 2t^4 + t^2 - 1 . Do I add the 2t^4 + t^2 first? 3t^6 -1? I'm still very unclear about finding domain and range. Thank you for your help Miranda Click here to see answer by nerdybill(6963)

 Question 457869: Solve by completing the square: m^2-1/2m=7/2 The solutions are___? Click here to see answer by josmiceli(9697)

 Question 457885: what is the equation of x^2+y^2=9 when shifted 3 units to the right? Click here to see answer by robertb(4012)

 Question 457863: a ball is thrown vertically upward with an initial speed of 48 ft/s. its height, in feet, after t seconds is given by h=48t-16t^2. how high does the ball go? Click here to see answer by richwmiller(9143)

 Question 458122: Analyze problem: find three numbers whose sum is 6 and whose product is 6. Click here to see answer by richard1234(5390)

 Question 458435: Consider the rational expression 3x/(x^2-16). What values in the denominator must we be mindful of ? Explain why. Click here to see answer by nerdybill(6963)

 Question 458533: I have to evaluate the discriminate of each equation. Tell how many solutions each equation has and whether the solutions are real or imaginary. 2x^2 +x +28 = 0, and 6x^2 - 2x + 5 = 0 Click here to see answer by Edwin McCravy(8913)

 Question 458534: I have to evaluate the discriminate of each equation. Tell how many solutions each equation has and whether the solutions are real or imaginary. x^2 -4x -5 = 0, and x^2 - 12x + 36= 0 Click here to see answer by Edwin McCravy(8913)

 Question 458781: R={(5,6),(b,8)} is a relation but not a fuction,what is b? Click here to see answer by robertb(4012)

 Question 459418: Could you please help me? I have a poster to create using the equation x^2 + 7x = -12 It is called Completing the Square I have to show: 1. Set up the original equation to begin completing the square. 2. Show what is added to each side to complete the square (boxes) 3. Factor and evaluate the square roots 4. simplify any radicals and indicate plus/minus(_+) 5.Solve the resulting equations and indicate solutions (put in solution set braces) Thank you so much Click here to see answer by edjones(7569)