# 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 597970: The function h = -t2 + 95 models the path of a ball thrown by a boy where h represents height, in feet, and t represents the time, in seconds, that the ball is in the air. Assuming the boy lives at sea level where h = 0 ft, which is a likely place the boy could have been standing when he threw this ball? A. his backyard B. an underground cave C. a ladder D. a bridge Click here to see answer by nerdybill(6962)

 Question 597971: Simplify the expression. (3 + i) - (2 - 2i) Click here to see answer by rfer(12662)

 Question 598307: What are the zeros of the function? y=(x+3)(x-3)(x-4) Click here to see answer by solver91311(16897)

 Question 598634: Can someone please show me what would a graph look like with the following functions and what are the differences of the letters: Thank you for all of your help! g(x) = - √x h(x) = √(x+3) i(x)= √(x-1)+ 2 j(x) = √(x)+3 Click here to see answer by stanbon(57361)
 Question 598634: Can someone please show me what would a graph look like with the following functions and what are the differences of the letters: Thank you for all of your help! g(x) = - √x h(x) = √(x+3) i(x)= √(x-1)+ 2 j(x) = √(x)+3 Click here to see answer by lwsshak3(6513)

 Question 599160: What are the values of x that g(x)=0 where g(x)= (x-1)/(x-4) ? Thank you! Click here to see answer by jim_thompson5910(28595)

 Question 599165: If the Polynomial f(x) is synthetically divided by x+7 and the remainder is 5, what value of x would you evaluate the function by to get f(x)=5. I don't even know where to start. Click here to see answer by jim_thompson5910(28595)

 Question 598903: Given f(-2)=8 for a polynomial f(x), explain why or why not x+2 is a factor of f(x) Click here to see answer by richard1234(5390)

 Question 599578: Given that f(x)=x/1-x^2 , g(x)=1/x . how to find fog (x) and gof(x) ...and how find the domains of composite functions. Click here to see answer by stanbon(57361)

 Question 599802: How would you find the domain of (1/x)/((x-1)/(x-4)) Thank you Click here to see answer by lynnlo(4164)
 Question 599802: How would you find the domain of (1/x)/((x-1)/(x-4)) Thank you Click here to see answer by Alan3354(30993)

 Question 600111: i need to no how to do this problem Find the polynomial of lowest degree with that has the following zeros ) -4, 2/3, 1 Click here to see answer by Alan3354(30993)

 Question 601163: SIMPLIFY: X SQUARED - 16 / X SQUARED - 10X - 25 (/) 3X - 12 /X SQUARED - 3X - 10 Click here to see answer by solver91311(16897)

 Question 601468: Evaluate the function. Find f(-3) when f(x) = x2 - 5x - 4 Click here to see answer by jim_thompson5910(28595)

 Question 601470: Determine the vertex of the parabola. f(x) = x2 - 8x + 17 Click here to see answer by stanbon(57361)
 Question 601470: Determine the vertex of the parabola. f(x) = x2 - 8x + 17 Click here to see answer by lwsshak3(6513)

 Question 602189: -√25+√25+√25... I know that this would equal x=√25 but would the negative make it no solution? Click here to see answer by richard1234(5390)

 Question 602493: If f(4) equals -1 and the graph of f is parallel to the line 3x-8y=16, find the equation for the linear function and write the answer in y=mx+b form. Thanks so much for your help! My test is tomorrow Click here to see answer by ewatrrr(10682)

 Question 602779: what points would i choose to graph the rational function (4x^2/x^2-9) Click here to see answer by lwsshak3(6513)

 Question 602814: can you go through the steps to solve this? 12y-2xy-2x(^2)y ------------ 6y-4xy-2x^(2)y also 20y^(2)-45 ----------- 10y^(2)-5y-15 Its asking to reduce in both of the above questions Click here to see answer by flame8855(424)

 Question 602875: what is the domain of the function G(F(x))? F(x)= 8-x, G(y)= sqrt(y) G(F(x))= sqrt(8-x) Click here to see answer by flame8855(424)

 Question 603576: The volume V of a cylinder varies jointly with the height h and the radius squared r^2, and V = 157.00 cm^3 when h=2 cm and r^2 = 25cm^2. Find V when h = 3 cm and r^2 = 36 cm^2. Round your answer to the nearest hundredth. I've tried this problem many times to no avail. Click here to see answer by Alan3354(30993)

 Question 603632: i need help to try to simplify a rational with 6a+9 in the numerator and 12 in the denominator Click here to see answer by Alan3354(30993)

 Question 603639: Simplify -5/(x-4) + (x-6)/10 then divide by (x+3)/(x-4). Assume all expressions are defined. Click here to see answer by mananth(12270)

 Question 603671: Solve square root of x+31 = x + 1 Click here to see answer by unlockmath(1602)

 Question 604198: (7x)/(x-2)+(2x)/(x+2)=9 what are the steps to solve this Click here to see answer by mananth(12270)

 Question 604244: Find a polynomial of lowest degree that has real coefficients, a leading coefficient of 1, and with 3 and 2+i as two of its zeros. I got as far as: f(x)= (x-3)(x-(2+i))(x-(2-i)), but then I am completely stuck. I appreciate the help, thank you! Click here to see answer by flame8855(424)

 Question 604213: A jet traveling at 570 miles per hour overtakes a prop-plane that is traveling 150 miles per hour. The prop-plane had a 2.8 hour head start . How far from the starting point does the jet overtake the prop-plane? Click here to see answer by ankor@dixie-net.com(15656)

 Question 604383: Can anyone help me with this problem? Thanks so much! Add simplify; if possible 7/4z^3 + 1/14^2 Click here to see answer by flame8855(424)