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

Tutors Answer Your Questions about Rational-functions (FREE)

Question 630632: Find the maximum y value on the graph of y=f(x)
f(x)=-x^2+8x+1
Click here to see answer by reviewermath(500)

Question 630632: Find the maximum y value on the graph of y=f(x)
f(x)=-x^2+8x+1
Click here to see answer by stanbon(57203)

Question 630633: Solve by completing the square what value should you add to each side of the equation x^2+18x=-9
Click here to see answer by Edwin McCravy(8879)

Question 630631: Solve and check 3x^2+2x=16
Click here to see answer by stanbon(57203)

Question 630630: Solve and check 9x^2-20x=0
Click here to see answer by dfrazzetto(277)

Question 630629: (x-5)(5x+1)=0 solve the equation
Click here to see answer by stanbon(57203)

Question 630869: I NEEDD TO DETERMINE THE CHARACTERISTICS OF THE FUNCTION (X+3X)/X IVE GOTTEN AS FAR AS THE X INTERCEPTS AND IVE DETERMINED THERE IS 0,0 AND 0,0 FOR X AND Y INTERCEPTS AND A HORIZONTAL ASYMTOPE OF 4 BUT IM NOT SURE IF I CAN USE POINT BY POINT METHOD TO GRAPH THIS PROBLEM OR IF THERE IS A NO SOLUTION ANSWER TO THE PROBLEM.
Click here to see answer by jsmallt9(3296)

Question 631178: Please help me solve this equation.
x^2 Here's what I tried to do.
sqrt(x^2) & ended up with...
x Did I do this right? If so where do I go from there?
Click here to see answer by ewatrrr(10682)

Question 631208: How to graph y=-3/4+2
Click here to see answer by 55305(76)

Question 631213: -3x(x^3+2x^2-x)
Click here to see answer by Alan3354(30935)

Question 631213: -3x(x^3+2x^2-x)
Click here to see answer by jim_thompson5910(28476)

Question 631215: 4(xy-1)-(x-3)
Click here to see answer by jim_thompson5910(28476)

Question 631227: Finding rational functions off of graphs:
Hi! I don't understand what to do with the horizontal asymptote when I am finding the graph function. For example:
Zero's of the function: -2 and 3
Vertical asymptote: -1
Horizontal Asymptote: y=2x-4
Thank you very much!
Click here to see answer by solver91311(16868)

Question 631222: Find the amount of aspirin to give a child of age 10 if the usual dosage is 325 milligrams
Click here to see answer by Alan3354(30935)

Question 631128: Find all horizontal and vertical asymptotes of the function.
f(x)= X^2+2/ x^2-1
Click here to see answer by jsmallt9(3296)

Question 631484: I have been given the function f(x)=4x/(x+1). I was told to find the inverse function. So I got f^-1(x)=-x/(x-4). First, is this correct? Second, How do you find the DOMANIN and RANGE?

Click here to see answer by ewatrrr(10682)

Question 631517: 3x-8/(x^2-5x+6) + x+2/(x^2-6x+8)
Click here to see answer by Tatiana_Stebko(1326)

Question 631563: which function is the inverse of f(x)=-1/5x+8 ?
Click here to see answer by girl_from_moscow(7)

Question 631686: Is the relation {(–2, 5), (–1, 5), (–1, 4), (–1, –3), (–2, 0)} a function?
Click here to see answer by nerdybill(6948)

Question 631252: Hi! I don't understand what to do with the slant asymptote when I am finding the graph function. For example:
Zero's of the function: -4 and 2
Vertical asymptote: 0
Slant/ Oblique Asymptote: y=(1/8)x+(1/4)
Thank you very much!
Click here to see answer by KMST(1853)

Question 631907: P(x)=x^5+x^3+8x^2+8, Find ALL zeros of P(x).
Click here to see answer by lwsshak3(6456)

Question 631978: write the following function in simplified form. list all restrictions on the domain. f(x)= 4x+12/x2+3x
Click here to see answer by stanbon(57203)

Question 632913: solve rational inequality. write the solution set in interval notation.
(x-3)(x+7)/x-4<=0

Click here to see answer by ewatrrr(10682)

Question 633254: how do you sketch this graph
y=-2x^2-4x-1?
Click here to see answer by ewatrrr(10682)

Question 633413: Find the slope-intercept form of the equation of the line that passes through the given point and has the indicated slope: (1, 2), m = -1
Click here to see answer by ewatrrr(10682)

Question 633411: Find the slope-intercept form of the equation of the line through the point (-1, 2), parallel to the line –4x – 9y = -7
Click here to see answer by ewatrrr(10682)

Question 633412: Find the slope-intercept form of the equation of the line passing through the points: (8, -6), (4, -2)

Click here to see answer by ewatrrr(10682)

Question 633409: Determine whether the lines L1 and L2 passing through the pair of points are parallel, perpendicular, or neither.
L1: (-6, -3), (-10, 0)
L2: (3, 9), (0, 5)

Click here to see answer by ewatrrr(10682)

Question 633516: Let f (x) = (5 + 2x) / (x2 - 3) and g(x) = (3.7)x.
a. What is f (4)?
Click here to see answer by solver91311(16868)

Question 633717: if a^n = b^n, then is a=b, explain
Click here to see answer by richwmiller(9132)

Question 633685: what is y= x ^2-10 in vertex form
Click here to see answer by ewatrrr(10682)

Question 633764: for all x, (2x+3x-6)+(x^2-18x+6)
Click here to see answer by stanbon(57203)

Question 634103: Find the missing term of the geometric sequence.
45, x, 1620
Click here to see answer by ewatrrr(10682)

Question 634331: please help me.
question:consider the functions p(x)= 3/4x and q(x)=3x/4
a. what is q(p(x))
b.p o q
Click here to see answer by lynnlo(4155)

Question 634387: rational zeros of
x^3-x^2-8x-2

Click here to see answer by solver91311(16868)

Question 634540: I need to simplify (a^5)^-4
Click here to see answer by Maths68(1474)

Question 634541: I need to simplify (7a^-6b^-1)(a^9b^0)
Click here to see answer by lwsshak3(6456)

Question 634541: I need to simplify (7a^-6b^-1)(a^9b^0)
Click here to see answer by Maths68(1474)

Question 634475: I need help please with this problem. Find the horizontal asymptote for x^4/x-10
Click here to see answer by jsmallt9(3296)

Question 634996: solve the equation. show your steps.
(24/2x-8)/(1/x+4)=(13/2)
Click here to see answer by jsmallt9(3296)

Question 635256: how do you solve this -3(2x-1)=x+10
Click here to see answer by asuar010(324)

Question 635448: create a function of the form y=f(x) that has vertical asymptotes at x=-5 and x=1, and a hole at x=-1
Click here to see answer by solver91311(16868)

Question 635485: rational expressions...I really need some help with this. Thank you.
When travelling at a fixed speed, travel time is directly proportional to distance travelled. If you go 120 miles in 3 hours, how long would a trip of 200 miles take?
Click here to see answer by solver91311(16868)

Question 635483: This is about rational expressions. I would appreciate help. Thanks so much in advance.
If Mary can paint one room in 100 minutes, and Jake can paint one room in 150 minutes, how long will it take if they work together?
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Question 635482: Rational Expressions..I really need help with this problem..I appreciate it so much, and thank you.
A sample of 320 mobile phone batteries contained 16 defective batteries. How many defective batteries would you expect to find in a sample of 3000?
Click here to see answer by solver91311(16868)

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