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

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Question 470113: Assuming that g(x) has an inverse function, if g(-4)=-5 find g^-1(-5).
a.5
b.-5
c.-4
d.4
e.-1/5

Click here to see answer by stanbon(75887)

Question 470114: If "f" is a one-to-one function and f(6)=-8,f(-8)=-7, and f(-7)=6, find f^-1(-7)
a. -6
b. -8
c. -7
d. 6
e. 7

Click here to see answer by stanbon(75887)

Question 470114: If "f" is a one-to-one function and f(6)=-8,f(-8)=-7, and f(-7)=6, find f^-1(-7)
a. -6
b. -8
c. -7
d. 6
e. 7

Click here to see answer by jim_thompson5910(35256)

Question 470116: Find the inverse of the function below, if one exists.
{(-9,5),(-7,4),(-3,-7),(-1,7),(0,-4)}
a. {(-7,-3),(-4,0),(4,-7),(5,-9),(7,-1)}
b. {(-7,-1),(-5,-9),(-4,-7),(4,0),(7,-3)}
c. {(-7,1),(-5,9),(-4,7),(4,0),(7,3)}
d. no inverse exists
e. {(0,4),(1,-7),(3,7),(7,-4),(9,-5)}

Click here to see answer by stanbon(75887)

Question 470381: Give the domain of the following functions:
1. 3x + 2y = 7
2. y = x2
3. y= 5/(x-4)
4. y=sqrt(x+2)
Click here to see answer by sofiyac(983)

Question 470562: Find the domain of the function s(x)=log8(x^2+2x-8)

Click here to see answer by robertb(5830)

Question 470487: Find the domain and range of: (7, -2), (-6, -4), (-9, -9), (-5, -5), (6, 6)
Click here to see answer by emargo19(101)

Question 470708: Find the domain of the function.

Click here to see answer by lwsshak3(11628)

Question 470127: Find the domain of the function s(x)=log8(x^2+2x-8)
Click here to see answer by lwsshak3(11628)

Question 469578: What is the range of the function f(x)= x^2-4x-12
Click here to see answer by lwsshak3(11628)

Question 469572: I need help solving this problem. I'm not quite sure that I understand how to do it:
Let and . What's the smallest number that is in the domain of (f)(g)?
I have been trying to figure out how to solve problems like this, but I just don't get it. I'd be very thankful if you could please explain this to me. Thank you for your time.
Click here to see answer by lwsshak3(11628)

Question 470797: Use synthetic division to determine which of the following values of "c" is a
zero of 4x^3+37x^2+6x-27.
-3,5,-8,8,-4
a.5
b.-4
c.-8
d.-3
e.8
Click here to see answer by jim_thompson5910(35256)

Question 470904: g(y)=Y / |Y| g (2)-g(-200)
Click here to see answer by Tatiana_Stebko(1539)

Question 470993: Assume f(x)=x^2+4 Find functional value f(-2)=
Click here to see answer by jim_thompson5910(35256)

Question 471177: Write the equation of the line satisfying the given condition.
Parallel to y = (2/3)x +1 and passing through the point (0, -3).
(Hint: Parallel lines have the same slope

Click here to see answer by Alan3354(69443)

Question 471237: Identify the slope and the vertical intercept of the following linear function.

y= 25-3x/5

Click here to see answer by jorel1380(3719)

Question 471056: determine the intercepts of "14x + 7y = 21."
Click here to see answer by ankor@dixie-net.com(22740)

Question 471304: the velocity v (in feet per second) of a rock dropped into a well is related to time(in seconds) by the formula v=32t. what is the velocity of the rock at the indicated instant? write your answer in the form (t,v)
(a) when the rock is released
( , )
(b) after 5 seconds
( , )
Click here to see answer by jorel1380(3719)

Question 471373: FIND EQUATION OF THE LINE M=-5, (3,8)
Click here to see answer by faceoff57(108)

Question 471518: Find f*g for f(x)= square root x+7 ; g(x)= 2/x and state the domain. Dont solve it as a composite function just multiply.
I got (-infinity,0)U(o,infinity) but i have no idea how i got it or if its even correct. Thank you
Click here to see answer by Tatiana_Stebko(1539)

Question 470796: Assuming that g(x) has an inverse function, if g(-4)=-5 find g^-1(-5).
a.5
b.-5
c.-4
d.4
e.-1/5

Click here to see answer by richard1234(7193)

Question 471912: f(x)=-4x-2 and g(x)=5x-6
Find f*g and state the domain
Click here to see answer by solver91311(24713)

Question 472131: find f(-x) when f(x)= x/(x^2+7)
Click here to see answer by jim_thompson5910(35256)

Question 472459: how do i find the x intercept for y=-2x^2+7x-6
Click here to see answer by nerdybill(7384)

Question 472681: Construct each the following equation and give its domain.
If f(x)= {(3,5),(2,4),(1,7)}, then 1/(f(x))=?
Help please!
Click here to see answer by richard1234(7193)

Question 472677: If you have f(x)=x-2x over zero whats your answer I thought it would be 0
Click here to see answer by edjones(8007)

Question 472746: Given the function f(x) = 3x + 16, evaluate f(19)
Click here to see answer by MathLover1(20849)

Question 472768: Factorize the binomial -1+y^2= ( ) ( ) Please explain the steps.
Click here to see answer by monika_p(71)

Question 473000: Evaluate [f(x+h)-f(x)]/h and simplify if f(x)=x^2-2x
Help please!
Click here to see answer by jim_thompson5910(35256)

Question 473133: f(x)= x squared/x squared-x-30
what is the domain, x and y intercept?
Click here to see answer by stanbon(75887)

Question 471014: Find the domain and range algebraically
g(t)=(2)/(sqrt(t+4))
Click here to see answer by lwsshak3(11628)

Question 467943: 5. Find the domain of the functions:
a.f(x)=3/x +2
b.f(x)=1/x^2-6x+5
Click here to see answer by lwsshak3(11628)

Question 465233: Find the vertical asymptotes, if any, for the following function. Please show all of your work.
f(x) = -2x(x+2)/4x�-3x-7
Click here to see answer by lwsshak3(11628)

Question 473478: x�+14 how many solutions does it have?
Click here to see answer by jim_thompson5910(35256)

Question 473864: How do you graph f(x)=-5x and f(x)=1/2x + 4
Pleas show me the steps on solving these problems.
Thanks
Click here to see answer by stanbon(75887)

Question 473859: Given the function k described by k(x)=x + 12, find each of the following,
k(0)
k(-4)
k(c+14)
Please show me the steps on solving.
Click here to see answer by richard1234(7193)

Question 474003: Rewrite the following in the form Ax+By=C
1.) y =4x+9
2.) y =4/7x-5/7
3.) y =3(x-4)+5
4.) y = 2/5(x-5)+10
5.) y = 7x-5+4(x-1)/2
Click here to see answer by ewatrrr(24785)

Question 474003: Rewrite the following in the form Ax+By=C
1.) y =4x+9
2.) y =4/7x-5/7
3.) y =3(x-4)+5
4.) y = 2/5(x-5)+10
5.) y = 7x-5+4(x-1)/2
Click here to see answer by MathLover1(20849)

Question 474138: can you please help me find the complex and real zeros of the function:

Click here to see answer by ewatrrr(24785)

Question 474320: what type of functions are these :
y=-7
vw=-18
v=1/3bh
n/m=1.5
here are the answer choices :
direct variation
joint variation
inverse variation
step function
constant

Click here to see answer by stanbon(75887)

Question 474319: what type of function is :
y=-7
vw=-18
v=1/3bh
and n/m=1.5
Click here to see answer by stanbon(75887)

Question 474324: are both n/m=1.5 and v=1/3bh a direct variation ? because a solution can go for one question .
Click here to see answer by stanbon(75887)

Question 474339: Simplify .
(6y^2-6/8y^2+8y)/(3y-3/4y^2+4y)
Click here to see answer by mananth(16946)

Question 474497: Find the range of: y = |x|
Click here to see answer by stanbon(75887)

Question 474526: what is the domain of (x,y):y= x(x+3)/ (x+4)(-7)=
Click here to see answer by sofiyac(983)

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