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Question 498372: I'm doing functions and need some help. the book I am using is 12th edition Algebra and Trig with analytical geometry by Swokowski and Cole. the homework is page 190-192 #3-45 by 3's.
-thanks
if f(x)= sqrt(x-4-3x), find f(4), f(8), and f(13)
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Question 498493: When F(x)= f(x+2) and you need to plug it into the equation f(x)=4x^2+5x-12. How do you solve it?
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Question 498579: How do I find the difference quotient of the function. ( the formula for the difference quotient is f(x+h)-f(x)/h.
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Question 498579: How do I find the difference quotient of the function. ( the formula for the difference quotient is f(x+h)-f(x)/h.
Click here to see answer by stanbon(75887)

Question 498604: 3x-3=12
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Question 498763: Find the domain of the function and express the answer in interval notation. Explain in words or show the calculations.
A. F(x)=3x-1
B. G(x)=sqrt(x+5)
C. F(x)=16x/(x^2+9)
D. G(x)=13x^2-5x+9
E. F(x)=6/(x-5)

Click here to see answer by solver91311(24713)

Question 498765: Finding equations of asymptotes of rational functions. Recall that asymptotes are lines therefore the answer must be given as an equation of a line.
a) Find the equations of both the horizontal and vertical asymptotes of the rational function f (x)=5x-1/x2+9
b) Find the equations of both the horizontal and vertical asymptotes of the rational function f(x)=2x^2+8/x-1
c) In words explain what an asymptote is.

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Question 498774: Find the domain of the function and express the answer in interval notation. Explain in words or show the calculations.
F(x)=3x-1

Click here to see answer by jim_thompson5910(35256)

Question 498777: Find the domain of the function and express the answer in interval notation. Explain in words or show the calculations.
F(x)=16x/(x^2+9)

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Question 498879: A box is to be removing four identical squares (with side length X) from each corner of a retangular piece of card then folding up the resulting flaps. If the piece of card is 40cm by 30cm write down a fundtion for the volume of the resulting box in terms of X. What sort of funtion is it ( quadratic, Rational, cubic or...). What is the domain of this funtion?

Click here to see answer by Earlsdon(6294)

Question 499043: Find the domain of the function and express the answer in interval notation. Explain in words or show the calculations.
G(x)=sqrt(x+5)

Click here to see answer by chessace(471)

Question 499036: Find the domain of the function and express the answer in interval notation. Explain in words or show the calculations.
G(x)=13x^2-5x+9

Click here to see answer by chessace(471)

Question 499030: Write the linear function 4x-y/3=-5 in slope-intercept form.
I subtract 4x on both sides which leaves me with -y/3=-4x-5. I don't know what to do next because of the -y/3
Click here to see answer by chessace(471)

Question 499137: Given the graph of y=f(x) describe in words the transformation of y=f(x+1).
Click here to see answer by richard1234(7193)

Question 499221: Given the total cost function C(x) = 7000 + 2x
a) what is the form of the function
b) state its domain
Click here to see answer by oberobic(2304)

Question 499221: Given the total cost function C(x) = 7000 + 2x
a) what is the form of the function
b) state its domain
Click here to see answer by nerdybill(7384)

Question 499239: How do I identify independent and dependent variables. And write a rule in function notation?
Click here to see answer by oberobic(2304)

Question 499313: Find the domain of the function and express the answer in interval notation.
(x)=16x/(x^2+9)

Click here to see answer by chessace(471)

Question 499374: Find the domain of 1/sqrt(3x+8)
Click here to see answer by oberobic(2304)

Question 499400: I try to do this math and the question is F(x)= x
Click here to see answer by jim_thompson5910(35256)

Question 499369: Find the domain of the function and express the answer in interval notation. G(x)=13x^2-5x+9

Click here to see answer by Gogonati(855)

Question 499372: Find the domain of the function and express the answer in interval notation.
F(x)=6/(x-5)

Click here to see answer by chessace(471)

Question 499439: Find the domain h(x) = 9 − x + x2 − 1
Click here to see answer by oberobic(2304)

Question 499431: Find the domain of the composite function f o g
f(x)= square root x; g(x)= 4x+12
Click here to see answer by chessace(471)

Question 499447: In words explain what an asymptote is
Click here to see answer by oberobic(2304)

Question 499451: Find the domain of the function and express the answer in interval notation. g(x)=sqrt(x+5). Please show calculation
Click here to see answer by oberobic(2304)

Question 499452: find the domain of the composite function f o g
f(x)= square root 2-x; g(x) = {2x-1} { are supposed to be straight lines
Click here to see answer by MRperkins(300)

Question 499448: Find the domain of the function and express the answer in interval notation. f(x)=3x-1. Please show calculation
Click here to see answer by nerdybill(7384)

Question 499519: I am so confused on how this works could u please help?
complete (g o f)(x) given f(x)=5x-4 and g(x)=x^2+3 and simplify the expressions
Click here to see answer by edjones(8007)

Question 499484: Can anyone help? For functions f and g and number c, compute (fog)(c)
f(x)=18x^2-3x
g(x)=20x-2
c=9
Thanks
Click here to see answer by Theo(13342)

Question 499523: please help me solve this equation f(x) 2x squared + 16x+28
Click here to see answer by Theo(13342)

Question 499794: solve x^4*sqrtx and what is the domain?
Answer?? x^9/2
Click here to see answer by MRperkins(300)

Question 499798: find the range of the function: f(x) = 3x-5. with domain (-1,4]
Click here to see answer by MRperkins(300)

Question 500029: Does the table represent a fucton if the input is 5,6,7,8 and the output is 3,4,5,6?
Click here to see answer by rfer(16322)

Question 500156: State the instructions of the function in words
f(x)=2x-6
Click here to see answer by richard1234(7193)

Question 500501: solve f(x)+g(x)
when f(x)= 3x and f(x)=x+4
Click here to see answer by chessace(471)

Question 500537: determine the domain.
y= 5- sq. root of 4x
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Question 500682: Y=10x/ 7-x
Click here to see answer by lowtek(4)

Question 500688: how do I find the Domain from the table below?
t F(t)
-1 5
-4 2
-9 -3
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Question 500758: Find the domain and range of the function. (Enter your answers using interval notation.)
h(x) = square root(9 − x^2)

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Question 501113: slope for -6x+3
-5x
7-x
and -3 + 1/2 x
thanks
Click here to see answer by Alan3354(69443)

Question 501116: if f(x)= -2/3+ 26 then what is f(-3)?
" " " " " what is f(6a)?
Click here to see answer by Alan3354(69443)

Question 501117: if f(x)= -2/3x + 26 then what is f(-3)?
" " " " " what is f(6a)?
Click here to see answer by Alan3354(69443)

Question 501595: How do i find x-values when trying to solve a function? For example k(x)=x+9. I need to find 5 function values to this equation. But what i am not understanding is where or how to find values for x?
Click here to see answer by ankor@dixie-net.com(22740)

Question 502263: what is the domain of the function f(x)= 7/(divided by) 4x+12
Click here to see answer by candy423(2)

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