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

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Question 1068875: f(x)=2/3 x-6 f(o)
Click here to see answer by Fombitz(32388)

Question 1068909: Is y = sq root of (x-3) a function?
Click here to see answer by josgarithmetic(39618)

Question 1068968: Can you have a function if the answer includes a sq root? for example y= sqrt (x-3) Doesn't this answer include both negative and positive because of the sqrt? Can you explain why? Thanks.
Click here to see answer by rothauserc(4718)

Question 1069003: find f composed of g of x for the indicated functions.
f(x)=4x-7 g(x)= 2/x+7
Click here to see answer by josgarithmetic(39618)

Question 1069016: Given f(x)=3x^6, find f^-1(x). Then state whether f^-1(x) is a function.
Click here to see answer by trsomas23@gmail.com(17)

Question 1069083:
Click here to see answer by ikleyn(52794)

Question 1069222: Let h(t) = 5t+2 and let k(s) = 4s^2
What is h(k(m))?
Click here to see answer by josgarithmetic(39618)

Question 1069254: The net income y (in millions of dollars) of Pet Products Unlimited from 1997 to 1999 is given by the equation y = 9x2 + 15x + 52, where x represents the number of years after 1997. Assume this trend continues and predict the year in which Pet Products Unlimited's net income will be $598 million
Click here to see answer by rothauserc(4718)

Question 1069257: Solve the equation x2 + 144 = 0 in the complex number system
Click here to see answer by Fombitz(32388)

Question 1069282: f(x)=5/x+7
Click here to see answer by Alan3354(69443)

Question 1069301: The lengths of the sides of a triangle are given. Determine if the triangle is a right triangle. If it is, identify the hypotenuse.
15, 36, 39
Click here to see answer by Alan3354(69443)

Question 1069255: Solve the equation 8x2 - 3x + 1 = 0 in the complex number system.

Click here to see answer by Alan3354(69443)

Question 1069256: Solve the linear equation 3(x + 3) = 4(x-6)
Click here to see answer by gsmani_iyer(201)

Question 1069269: Let f:R to R and g:R to R and f(x) is defined by f(x)=2-3x and g (x) is a quadratic function.If (fog)(x)=3x^2-9x-4 find g (x)
I got my answer x^2-2x-2=0
Is it correct ?
Could you give a full solution

Click here to see answer by rothauserc(4718)

Question 1069720: If f(x) = √x + 12 and g(x) = 2√x, what is the value of (f-g)(144)?
-84
�60
0
48
Click here to see answer by Fombitz(32388)

Question 1069743: Solve (2x - 3)2 = 49 by using the Square Root Method
Click here to see answer by Alan3354(69443)

Question 1069736: Write 17x + 3y = 10 in slope-intercept form
Click here to see answer by Alan3354(69443)

Question 1069737: Find the general form of the equation of the circle with center at the point (2, -3) containing the point (5, -3).

Click here to see answer by Alan3354(69443)

Question 1069741: Solve x2 - 6x - 27 = 0 by factoring
Click here to see answer by Alan3354(69443)

Question 1069746: List the intercepts for the graph of the equation y = x3 - 27.
Click here to see answer by Fombitz(32388)

Question 1069739: Find the slope and y-intercept of the line -x + 10y = 70.

Click here to see answer by Alan3354(69443)

Question 1069979: find x when f(x)=2
f(x)=2x-7
Click here to see answer by ikleyn(52794)

Question 1070023: Help with matching? Thanks! Match the description of each transformation with the equation by drawing a line.
1. Moved up three and to the left four
2. Vertical stretch by 5 and right seven
3. Vertical compression by a factor of 1/3
4. Moved down 5 and to the right 3
5. Reflected over the x-axis and down 4
A. y = − x3 - 4
B. y = (x − 3) − 5
C. y = 7 x + 4 + 3
D. y = 3log x
E. y = 5(x - 7) 3
Click here to see answer by Edwin McCravy(20056)

Question 1070235: Counting Functions: How many functions are there from a set with m elements to a set with n elements?

Click here to see answer by rothauserc(4718)

Question 1070342: F(X)=(X-2)(X+7)
Click here to see answer by Alan3354(69443)

Question 1070381: b) Given the functions f(x) is 3x^2-5 and g(x) is 4+2x, find the following
(i) (fog) (2) (ii) g(^-1)
Click here to see answer by Boreal(15235)

Question 1070421: X-7y=-7
Click here to see answer by Alan3354(69443)

Question 1070570: Given the function f described by f(x)=-4x+18, find the following.
f(x+3)=
Click here to see answer by Fombitz(32388)

Question 1070602: inverse of 2^x
Click here to see answer by stanbon(75887)

Question 1070597: An equation that defines y as a function of x is given. Complete parts a and b.
5x-3y=1
a) solve the equation for y in terms of x, and replace y with function notation f(x).
Simplify
Click here to see answer by stanbon(75887)

Question 1070634: If point A(6,1),B (8,2),C (8,4),D (p,3) are vertices of a parallelogram taken in order, find value of p
Click here to see answer by stanbon(75887)

Question 1070634: If point A(6,1),B (8,2),C (8,4),D (p,3) are vertices of a parallelogram taken in order, find value of p
Click here to see answer by MathTherapy(10552)

Question 1071017: Write and exponential function f so that the slope from the point (0,f(0)) to the point (2,f(2)) is equal to 12
Click here to see answer by Fombitz(32388)

Question 1071071: Given the functions f:x→ 3-x and g:x→ 1/(1-x), x≠1, find the expression for :
｛｛｛f^13 g^19｝｝｝
Click here to see answer by Fombitz(32388)

Question 1071090: Finding the domain and range of the function 1/(ax+b).
Click here to see answer by josgarithmetic(39618)

Question 1071282: What is the domain of the function f(x) = x2 + 3x + 5?
Click here to see answer by Boreal(15235)

Question 1071121: b) Let c>0 be a real number and L_3={1*c,2*c,4*c,5*c,5*c,7*c}.
Note that L_3 is obtained by multiplying the constant c to each element of L_1. Find the average and the standard deviation of the list L_3.
Click here to see answer by Fombitz(32388)

Question 1071387: The product of two numbers is 20 if one of the numbers is 8/9, what is the other number?
Click here to see answer by Alan3354(69443)

Question 1071547: Determine if the function is even, odd, or neither.
f(x) = -4x3 + 7x
please explain in detail how to solve this I really want to understand it thank you.
Click here to see answer by math_helper(2461)

Question 1071693: Suppose that the relation T is defined as follows.
T={(7,3), (-7,3), (-5,0)}
Give the domain and the range of T.
Write your answers using set notation.
Thanks for your help! (:
Click here to see answer by stanbon(75887)

Question 1071637: Explain how inverse functions can be used in measurement conversions and point out why it might be helpful to know the customary units if you are given metric units. Demonstrate how to convert the speed of light c = 3.0 � 10^8 meters per second to miles per hour.
Click here to see answer by Boreal(15235)

Question 1071708: Difference Quotient of f
f(x) = 4x+8

I'm having trouble with putting this in the right areas, the answer is 4 but I'm not sure how my online class got 4?
Click here to see answer by stanbon(75887)

Question 1071709: Find the difference quotient of f. Be sure to simplify.
f(x) = √x-12
the diffrence of quotient of f, f(x)= √x-12
I was given a hint of rationalizing the numerator but im not so sure how to go about that?
Click here to see answer by stanbon(75887)

Question 1071811: g(3x+2)=12x+5 find g(x)
Click here to see answer by josgarithmetic(39618)

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