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Question 787140: How do I solve these kind of questions:
1) f(x)=2x+3, g(x)=x^2-1, find (fog)(3)
2) f(x)=3x-2, g(x)=x+2 / 3, find (fog)(x)
3) f(x)= root x, g(x)=-x^2-2, find (fog)(x)
4) f(x)=x^2-1, g(x)=x^2+1, find (fog)(x) - (gof)(x)
Thank you.
Click here to see answer by Edwin McCravy(20054)

Question 787241: The domain of {(-4, 0), (-2, 1), (1, 3), (2, 6)} is {-4, -2, 1}.
A. true
B. false
PLEASE HELP
Click here to see answer by jim_thompson5910(35256)

Question 787252: What's the value of x if f(x)=9
f(x)=5x�1

Click here to see answer by jim_thompson5910(35256)

Question 787286: Write a rule for the function input,x-0,1,2,3. Output,y-2.2,3.2,4.2,5.2,
Click here to see answer by oscargut(2103)

Question 787342: please help me solve this equation : f(x)=3x-4
Click here to see answer by solver91311(24713)

Question 787661: what is the domain of x+y=4?
Click here to see answer by xinxin(76)

Question 787691: what is the domain and the range of the function g(x)?
g(x) =
Click here to see answer by solver91311(24713)

Question 787870: if f(x) = 3x^2, which of the following expresses f(2p)?
a.) 6p
b.) 6p^2
c.) 12p
d.) 12p^2
e.) 24p^3
Click here to see answer by solver91311(24713)

Question 787870: if f(x) = 3x^2, which of the following expresses f(2p)?
a.) 6p
b.) 6p^2
c.) 12p
d.) 12p^2
e.) 24p^3
Click here to see answer by stanbon(75887)

Question 787903: Please help me solve this question 4(5y-6)-5(3y-1)
My email; nasirkhan264@gmail.com
Click here to see answer by solver91311(24713)

Question 787903: Please help me solve this question 4(5y-6)-5(3y-1)
My email; nasirkhan264@gmail.com
Click here to see answer by kamal gautam(1)

Question 788143: f(x)=x^2+x-3 and g(x)=9x+9. Find g(-1) and f(g(-1))
This what I have so far
g(x)=9(-1)+9
g(x)= -9+9
g(x)=0
I don't know what to do from this point forward to finish the problem. Any help would be greatly appreciated. Thank you.
Click here to see answer by josmiceli(19441)

Question 788356: If f(x) = 3x + 5 and g(x) = 2x - 9, find f(x) + g(x).
Click here to see answer by jim_thompson5910(35256)

Question 788676: Find the difference quotient and simplify your answer.
F(x)=5x-x^2, (f(5+Δx)-f(5))/ Δx, Δx does not equal 0
Click here to see answer by stanbon(75887)

Question 788913: 1.
If f(x) = 3x + 5 and g(x) = 2x - 9, find f(x) - g(x).
A. 5x + 4
B. x - 4
C. x + 14
D. 5x - 4
PLEASE HELP
Click here to see answer by jim_thompson5910(35256)

Question 789048: (gof)(x), f(x)=4x 2nd power+4x+3, g(x)=4x-7
Click here to see answer by stanbon(75887)

Question 789057: Find symbolic representation for f power -1(x)
f(x)=sq rt x+6
Click here to see answer by stanbon(75887)

Question 789168: how do you do problems such as my algebra math teacher giving me questions like graph (x-1)exponent 2 + 1 and using numbers 1 2 0 -1 -2
Click here to see answer by ankor@dixie-net.com(22740)

Question 789059: Function is linear and constant, linear but not constant, or nonlinear-
f(x)=6
Click here to see answer by stanbon(75887)

Question 789310: I am trying to help my step son out with his algebra problems. I normally do well in algebra, but for some reason I am having difficulty today. He is asked to identify the independent and dependent variables in the following. A small size bottle of water cost $1.99 and a large size bottle of water cost $3.49
I think the independent variable would be the size of the bottle and the dependent variable would be the amount of water the bottles hold and the price of the bottles. Please advise. Thank You!
Also, he is asked to solve and write as a function and in function notation???
Click here to see answer by Alan3354(69443)

Question 789344: Determine the number of real zeroes and number of imaginary zeroes-
f(x)=x power of 2+4x+7
Click here to see answer by Alan3354(69443)

Question 789372: 8. Write an equation of the line given the graph in Figure A on the back of this page.
Click here to see answer by Alan3354(69443)

Question 789317: f(x)=x^2+6x+9
Click here to see answer by Alan3354(69443)

Question 789370: 4. Write an equation of the line parallel to the line y = 2 − 3 x at (4, −2) and sketch its graph.
Click here to see answer by Alan3354(69443)

Question 789779: find the difference quotient f(x+h)-f(x)/h for
f(x) = sqrt(x/(x+1)
please show work and explain this will be very helpful thank you so so much!
Click here to see answer by stanbon(75887)

Question 789980: Function Notation: h(x)=-x squared +3 let x=2. How would i write it out and solve it?
Click here to see answer by solver91311(24713)

Question 790124: Use and to evaluate the expression.
f(g(-2)) and g(f(-2))
Click here to see answer by solver91311(24713)

Question 790136: I need help finding the domain and range of the following equation
5x-3y+4=0 would really appreciate it!
Click here to see answer by rothauserc(4718)

Question 790400: How do u change the decimal -3.09 to the fraction
Click here to see answer by josgarithmetic(39613)

Question 790440: write a formula for jk(x):
j(x) = (x-2)/4 k(x) = 4x
Click here to see answer by Cromlix(4381)

Question 790447: write a formula for jk(x) when:
j(x)=3x+2 and k (x)=(x-3)/2
Click here to see answer by Cromlix(4381)

Question 790941: If f (x)=2x-3 and g(x)=x"+5 , could you solve for me the,
* ( " ) is 2
a. g(f (2))
b. f(g (3))
c. g(a-1)
d. g(f(x))
Thank you
Click here to see answer by stanbon(75887)

Question 790959: Give the domain and range of each function.
#40. -6= 3x+2y
Click here to see answer by jim_thompson5910(35256)

Question 790975: given the equation xy-5y=2x+3, show that y is a function of x and determine the domain in interval notation
Click here to see answer by josgarithmetic(39613)

Question 791255: A zoo�s count of the number of visitors would be an example of continuous data. True or False? Thank you. c:
Click here to see answer by solver91311(24713)

Question 791326: Give the domain and range.
Y=mx+b, where m and b are real numbers and are not equal to zero.
D:
R:
Click here to see answer by solver91311(24713)

Question 791349: What is the slope intercept form of 2x + 3y =8
Click here to see answer by solver91311(24713)

Question 791751: sqrt(4x^2+2x-30) find the domain
Click here to see answer by solver91311(24713)

Question 791832: How do you find the different quotient of f(x)=x4?

Click here to see answer by solver91311(24713)

Question 791910: Given that f(x) = 5x - 10 and g(x) = x + 3, solve for f(g(x)) when x = -1.
Click here to see answer by jim_thompson5910(35256)

Question 791917: Is the function 6x|2x^3| even, odd or neither ? and how to check solution ?
Click here to see answer by fcabanski(1391)

Question 791829: Can you please explain to me how you get the answer to this as well as how to do this .
If f(x)=2x-6 and g(x)=x-2x*2 , Find each value
f(2)
g(-1/3)

Click here to see answer by ankor@dixie-net.com(22740)

Question 792462: k(x)=x^3-5x:
Find k(-1)
Click here to see answer by psbhowmick(878)

Question 792701: Hello I am learning functions right now in my Algebra class I am really struggling in that class my grade dropped to a F today. Help me please.
Click here to see answer by stanbon(75887)

Question 792938: The domain of f(x) = 9-2x is 4 < x < 10. Find the range of function f
Click here to see answer by psbhowmick(878)

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