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

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Question 957400: If k(x) is a function.What is the relationship between k(x) and k(-x)
Click here to see answer by MathLover1(20850)

Question 957398: If k(x) is a function. What is the relation between k(x) and -k(x)
Click here to see answer by josmiceli(19441)

Question 957433: Find the y-intercept of the function below
y= -3(x+2)(x-6)
Click here to see answer by Alan3354(69443)

Question 957443: The Function rule A= πr^2 is a model for the area A of a circle with a radius r. Which of the following represents this equation written in function notation?
A. A(π) = r^2
B. A(r) = πr^2
C. A(x) = πr^2
D. A(y) = πr^2
Click here to see answer by Alan3354(69443)

Question 957428: How do you decide if a table of data represents a quadratic function?
Click here to see answer by Alan3354(69443)

Question 957445: If f(x)=(x-1)/(x+1), evaluate f^-1((1/c)+1).
hopefully you'll understand that, thank you for your time
Click here to see answer by stanbon(75887)

Question 957429: How do you write an explicit equation for a quadratic function, given a table of data. (Explain the process/steps)
Click here to see answer by Alan3354(69443)

Question 957581: Find the y intercept of the function below
y= -3(x+2)(x-6)
Click here to see answer by Alan3354(69443)

Question 957582: What are the values of a and b that complete the table representing the linear function.
x k(x)
-3 -5.5
0 b
3 9.5
a 17
Click here to see answer by MathLover1(20850)

Question 957621: y=7x+3. If the value of x increases by 1, what happens to the value of y?
Click here to see answer by Alan3354(69443)

Question 957750: G(x)=1/2x+4
What is the horizontal asymptote?

F(x)=4x/x-2
A) find the vertical asymptote
B) what is the horizontal asymptote
C) what is the y intercept
F(x)= (x-2)(x+2((x-5)
Find f(3)

Click here to see answer by lwsshak3(11628)

Question 957362: How to write a range when x=0,y=3 and x=5,y=8.

Click here to see answer by Fombitz(32388)

Question 957886: what are the intercepts for f (x)= square root 2x-3
Click here to see answer by Fombitz(32388)

Question 958024: Bill and Jenna are solving the quadratic equation x^2 - x = 12.
Bill solved this way
x^2 - x = 12
x(x - 1) = 12
x = 12 or 13
Jenna solved this way
x^2 - x = 12
x^2 - x - 12 = 0
(x - 4)(x + 3) = 0
x = 4 or x = -3
Which student is correct?
What error did the other student make when solving?

Click here to see answer by jim_thompson5910(35256)

Question 958177: what is the range of y=3x+2 if the domain is {-3,-1,0,1,3}?
Click here to see answer by arodr172(1)

Question 958215: You go out to dinner and decide to leave a 15% tip for the server. The bill for the meal is b. Write an expression for the amount of tip in the terms of b.

Click here to see answer by macston(5194)

Question 958232: What is the function rule for the amount of change C(x) you receive from a $50 bill if you buy x pounds of dog food at $1.60 a pound?

Click here to see answer by LinnW(1048)

Question 958464: Find the domain and range of:
1. F(x)=sqrt of x-1,
2. F(x)=tanx
Click here to see answer by Fombitz(32388)

Question 958370: Given f(x) = 9x + 7 and g(x) = x2 + 10x. Find (f o g)(4).
Click here to see answer by Fombitz(32388)

Question 958383: Which sets of ordered pairs represent y as a function of x?
A.{(-8,2),(0,5),(1,-5),(-4,7)}
B.{(5,7),(-7,3),(-6,3),(2,7)}
C.{(-3,4),(1,2),(-3,5),(6,2)}
D.{(1,4),(-1,4),(2,7),(-2,7)}
E.{(5,4),(2,3),(1,1),(2,4)}
Click here to see answer by Fombitz(32388)

Question 958756: If k(x) is a function what is the relationship between k(x) and k^-1(x)
Click here to see answer by Fombitz(32388)

Question 958807: x = -3
I need to find the domain and range for each of this equation and Write them in interval notation.
Click here to see answer by Fombitz(32388)

Question 958825: Find the domain and range of:f(x)=1-x if x< =1 over sqrt of x-1 if x>=1
Click here to see answer by Fombitz(32388)

Question 958898: Factor 10r^4+30r^3+5r^2+15r completely.
Click here to see answer by MathLover1(20850)

Question 958946: kind of confused on this:
suppose the functions f and g are defined for all real numbers x as follows: f(x)=3x^2
g(x)=2x
write the expressions for (f+g)(x)and (f-g)(x) and evaluate (fxg)(-2)
Click here to see answer by stanbon(75887)

Question 958989: Construct a rational function g(x) such that its natural domain is all of R and its range is given
by the interval [−1, 0)
Click here to see answer by jsmallt9(3758)

Question 958916: Simplify each product. Write in standard form.
(q-1)^2
Click here to see answer by Fombitz(32388)

Question 959072: what number minus what number equals 49973
Click here to see answer by stanbon(75887)

Question 959112: Given the function f(x)=(x-4)^{2}, where x is greater than or equal to 4, find the f^{-1}(x) and its domain.
Click here to see answer by stanbon(75887)

Question 959110: Given the one-to-one function f(x) =(x-2)^3,find the inverse function
Click here to see answer by jim_thompson5910(35256)

Question 959113: Given the one-to-one function f(x) = sqrt[3]{x} - 8; find the f^{-1}(x).
Click here to see answer by stanbon(75887)

Question 959133: If f(2x)=2/(2+x), x>0, find 2f(x).
Click here to see answer by josgarithmetic(39618)

Question 959133: If f(2x)=2/(2+x), x>0, find 2f(x).
Click here to see answer by MathTherapy(10552)

Question 959025: If f(2x)=2/(2+x), x>0, find 2f(x).
thank you
Click here to see answer by josgarithmetic(39618)

Question 959025: If f(2x)=2/(2+x), x>0, find 2f(x).
thank you
Click here to see answer by MathTherapy(10552)

Question 959135: Let f be the function defined by f(x)=ax^2- sqrt2 for some positive a. If f(f(sqrt2))=-sqrt2, find the exact value of a.
Click here to see answer by Theo(13342)

Question 959111: Given the one-to-one function f(x) = x^{1/3} + 2, find the inverse function
Click here to see answer by Fombitz(32388)

Question 959132: If g(x)=1-x^2 and f(g(x))=(1-x^2)/x^2 when x does not equal 0, what is the value of f(1/2)?
Click here to see answer by jsmallt9(3758)

Question 959514: Given that f(x)=x-2, g(x)= -3x^2 +15x-1, and h(x)= square root x-4, find the following and give the domain in interval notation.
(f+h)(29)
(f-g)(-5)
(f+g)(x)
Given that f(x)=2x-3, and g(x)=3x^2-2x-1, find each of the following and give the domain in interval notation.
(f of g)(-1)
(f of f)(x)
(f of g)(x)
Click here to see answer by satyareddy22(84)

Question 959556: 7x^3-62x^2+167x-102, 4-i is a zero
a, find all the zeros
b,factor f(x)as a product of linear factors
c,solve the equation f(x)=0
Click here to see answer by MathLover1(20850)

Question 959531: Evaluate the following limit:
lim x^2
x→1 |x-1|

Click here to see answer by Fombitz(32388)

Question 959653: If f(x)=2x-36, find -5 times f(-18)
Click here to see answer by MathLover1(20850)

Question 959637: f(x)=

3x^2-6x+5
_________
x^2-14+48
Horizontal asymptotes:
Vertical Asymptotes
Click here to see answer by josgarithmetic(39618)

Question 959744: for g(x)=3x^2-12x+6
a,find the values of the x intercepts
b,state the coordinates of the y intercept
c,state the vertex
d,state the axis of symmetry
e,state the direction of the parabola
f,decide whether there is a relative maximum or minimum, then state it
g,graph the function accurately using the above information
h, state the domain
i,state the range
j,state the interval of x where the graph is increasing
k,state the interval of x where the graph is decreasing
Click here to see answer by josgarithmetic(39618)

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