Questions on Algebra: Functions, Domain, NOT graphing answered by real tutors!

Tutors Answer Your Questions about Functions (FREE)

Question 362302: form a polynomial whose real zeros and degree are given. zeros:-1,1,3; degree 3
Click here to see answer by robertb(4012)

Question 362319: Find an equation of a rational function f that satisfies the conditions:

vertical asymptote: x = - 3, x = 0
horizontal asymptote: y = 0
x-intercept: 1; f (2) = 1

Click here to see answer by stanbon(57387)

Question 362439: How do I answer this?
Solve the inequality.
x^4 - 32x^2 - 144 > 0
Click here to see answer by Fombitz(13828)

Question 362445: Please help.
pH=log[10][H^+] Find the pH if the [H^+] = 9.6 x 10^-6.
Click here to see answer by Fombitz(13828)

Question 362399: how to write the slope-intercept form of the equation of each line
Click here to see answer by Fombitz(13828)

Question 362453: The function D(h)=5e^-0.4h can be used to determine the milligrams D of a certain drug in a patient's bloodstream h hours after the drug has been given. How many milligrams (to two decimals) will be present after 10 hours?
Click here to see answer by Fombitz(13828)

Question 362446: If 7^-x= 1/4, what does 49x equal?
Click here to see answer by HasanSahin(52)

Question 362493: I need help with the following problem:
Evaluate the function for the given value of x
f(x)=2
x=8 I don't understand how to evaluate this problem.
Thanks

Click here to see answer by Fombitz(13828)

Question 362440: Im lost!
Solve the problem.
Find k such that f(x) = x4 + kx3 + 2 has the factor x + 1.
Click here to see answer by CharlesG2(828)

Question 362854: how do I find the domain of F(x)=the sqaure root of 7x+14?
Click here to see answer by robertb(4012)

Question 362916: I need help to determine the inverse of the function please.
Find the inverse function of g(x)= x/x-2.
Click here to see answer by Fombitz(13828)

Question 363048: please can you explain how you got the answer
state the domain of f(x)=9-18x
thank you
Click here to see answer by Fombitz(13828)

Question 363056: v(x)= sqrt-4x+24
find the domain of the function write the answer in interval notation
Click here to see answer by Fombitz(13828)

Question 363067: Give the Domain and Range of H={(-2,-3),(5,9),(5,-2)}
Write your answer using set notations
Click here to see answer by Fombitz(13828)

Question 363281: I am trying to figure out the domain for this problem
g(x)= 9
5-7x
The 9 is over the 5-7x like a fraction. help please
Click here to see answer by edjones(7569)

Question 363397: If xy=0, what do you know about the location of point (x,y) on the coordinate plane? Explain.

Click here to see answer by Fombitz(13828)

Question 363390: What advantage(s) can you see of having a function rule instead of a table of values for a function? Explain.
Click here to see answer by robertb(4012)

Question 363613: f(X)=x^3+3x^2-x-3
Click here to see answer by ewatrrr(10682)

Question 363761: What type of graph would a function of the form f(x) = a(x-h)^2 + k have if a = 0? What type of function would it be?
Click here to see answer by robertb(4012)

Question 363802: i have this problem tat goes----
Given that u(t) = 2t² - 1,
Find the expression for u(3t) – 2u(t)

Click here to see answer by vasumathi(46)

Question 363867: What is the range of the function f(x)=4x-3 if the domain is {-1.0.2}?
Click here to see answer by stanbon(57387)

Question 363923:
1. I need to complete the following table by determining the value of each letter.
2. I need to determine an equation that may be used to relate the numbers in the range with those in the domain.
X: 3,9,4,6,7,C,D
Y: 5,23,8,A,B,11,2
I really don't understand how to complete this... I've tried and haven't gotten very far. please explain verbally, numerically, and if possible...graphically. thank you!!!
Click here to see answer by stanbon(57387)

Question 363935: Please, I need a detailed explanation of what f(f-1(x)) or what f of f inverse means. Thank you.
Click here to see answer by user_dude2008(1861)

Question 363938: The shorter parallel side of a trapezoid is equal to its height, and the longer side is 3/2 times as long. If the area is 80 ft 2, find the length of the shorter side.
Click here to see answer by user_dude2008(1861)

Question 364145: I know that this is algebra and x is the argument what does that mean this problem Please help me understand and solve this equation -5+X=20
Imani Robinson
Kipp Stand Academy
6th grade
Click here to see answer by Earlsdon(6287)

Question 364345: what is the range of the function rule y=5x-2 for the domain {0.5, 11}
Click here to see answer by Mr.positive(13)

Question 364447: find the domain: f(x)=5x*e^(4x)
Click here to see answer by Fombitz(13828)

Question 364551: state the domain of the given function; f(x)=3x+5
Click here to see answer by Fombitz(13828)

Question 364734: Round all answers to the nearest cent.
At 2:00pm Braden rented a mountain bike at 5:00, after cycling 18 miles Braden paid $12 for the rental.
A) Find Braden's average speed, in miles per hour.
B) Find the rental rate, in dollars per hour.
C)Find the rental rate, in dollars per mile.
Thank you
Click here to see answer by robertb(4012)

Question 364870: Please help me solve this by finding the zero of the function
Click here to see answer by Fombitz(13828)

Question 365068: If f(x - 2) = g(x + 1) + 1/x + 2, what does f(0) equal?
A) g(1) + 2
B) undefined
C) g(3) + 5/2
D) g(0) + 2
E) g(1)
Click here to see answer by Fombitz(13828)

Question 365088: for the function f(x)=7-3x find the following
f(5)
Click here to see answer by Fombitz(13828)

Question 365092: for the function f(x)=7-3x find the following
2f(x)
Click here to see answer by Fombitz(13828)

Question 365178: determine the function's difference quotient t(x)=x^3+2
Click here to see answer by Edwin McCravy(8909)

Question 365483: f(x)=2x^3-32x
Click here to see answer by ewatrrr(10682)

Question 365546: Use the rational zeros and synthetic division to factor f(x)=x^3+x^2-5x-2.
Click here to see answer by stanbon(57387)

Question 365546: Use the rational zeros and synthetic division to factor f(x)=x^3+x^2-5x-2.
Click here to see answer by ewatrrr(10682)

Question 365614: I was given a question asking the f(g(x). How would I solve a problem like this?

There is obviously a equation given for both but for the sake of my question you can give me a example so it will be easier for you and me to understand.
Click here to see answer by stanbon(57387)

Question 365713: write y+9x=4 so y is a function of x
Click here to see answer by jim_thompson5910(28598)

Question 365760: Given the function f(x) = 2- x , evaluate and simplify the following expression
f(x-1)-1
Click here to see answer by robertb(4012)

Question 365786: Given the function f(x) = 2- x , evaluate and simplify the following expression
-f(x)
f(3x)-1
Click here to see answer by robertb(4012)

Question 365955: If f is a function such that f(x+1) = 2x - 1, then f(2x) =
A) 4x - 1
B) 2x - 2
C) 4x - 4
D) 4x - 3
E) 2
Click here to see answer by nyc_function(2733)

Question 366288: Given f(x) = -3x + 7, find f(-2)
Click here to see answer by Alan3354(30993)

Question 366305: I am in the process of learning these things and a way to make it more interesting besides the ol' make it into a word problem thing. Can you help me
Click here to see answer by mananth(12270)

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