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

Tutors Answer Your Questions about Rational-functions (FREE)

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 599047: 3sqrtx-16=4

Click here to see answer by flame8855(424)

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 599181: x^2-4/x
Click here to see answer by Alan3354(30993)

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 599672: how do you solve for b?
(b+3)^(1/2)+b^(1/2)=3
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 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 601537: x^2-25

Click here to see answer by Alan3354(30993)

Question 601619: Solve the equation, if possible:
40x+20/10x+30
Click here to see answer by Alan3354(30993)

Question 601624: if f(x)=3x-2 and g.f(x)=6x-1,find g(x).
Click here to see answer by flame8855(424)

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 602642: What are some ways that adding radical expressions is similar to adding polynomial expressions? How are the two processes different?
Click here to see answer by solver91311(16897)

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 602816: Solve the problem
Click here to see answer by richwmiller(9143)

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 603673: Solve (-3x+18)^(1/2) = x
Click here to see answer by alicealc(281)

Question 604009: (x+3)^4= 362
Click here to see answer by Alan3354(30993)

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 604290: 3x-6/x^2+x-6
Click here to see answer by mananth(12270)

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)

Question 604442: evaluate v(s)=s^3+3s^2-4s-2 when s = -2
Click here to see answer by nerdybill(6962)

Question 604007: find the rational zeros of f(x)=-x^3-4x^2+11x+30
Click here to see answer by lwsshak3(6513)

Question 604479: can anyone help me figure out this questions? Thanks a million!!
Solve the equation and check your answer.
q+4/3+ q-5/5=3
Click here to see answer by lawdej(58)

Question 604498: Any help with this problem is appreciated. Thanks so much!
Divide and simplify x^2-49/x / x-7/x+6=

Click here to see answer by flame8855(424)

Question 604580: f(x)= 3(x^2+5) Find f^-1(x), f^-1(27)
Click here to see answer by nerdybill(6962)

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