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

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Question 54767: X^2 + Y^2=16
Click here to see answer by checkley71(8403)

Question 54669: use the given conditions to write an equation in the point-slope form and the slope-intercept form...thank you
slope=-2, passing through (0, -3)
Click here to see answer by venugopalramana(3286)

Question 54668: use the given conditions to write an equation in the point-slope form and the slope-intercept form
slope=-5, passing through (-4, -2)
Click here to see answer by venugopalramana(3286)

Question 54624: PLEASE HELP ME WITH THIS PROBLEM;
For f(x)=1 over x62-2x-8 find the intervals where f(x)<0.
Click here to see answer by venugopalramana(3286)

Question 54807: f(x)= x^2+2x-3 and g(x)=5+x find (fg)(x)
Click here to see answer by funmath(2925)

Question 54822: PLEASE HELP ME WITH THIS PROBLEM:
The table shows several value of the function f(x)=-x^3+x^2-x+2. Complete the missing values in this table, and then use these values and the intermediate value theorem to determine (an) interval(s) where the function must have a zero.
HERES THE TABLE:
x -2 -1 0 1 2
f(x) 16 _ _ _ -4
Click here to see answer by stanbon(57387)

Question 54928: rewrite the equation so that y is a function of x. The equation: 1+7y=5x-2. Could you show your formula steps? Please and thank you.
Click here to see answer by jainenderkapoor(61)

Question 54968: Find the Inverse of the following function:
f(x)=10^(x-3)+4
Click here to see answer by funmath(2925)

Question 54963: Given p=$10 (price per unit) and q=3000 (quanitity demanded per week)
If p=f(q) what is the domain of f.

Click here to see answer by stanbon(57387)

Question 55046: Help please I need to know how to factor this problem x^5-4x^3-8x^2+32
Click here to see answer by anjulasahay(30)

Question 55046: Help please I need to know how to factor this problem x^5-4x^3-8x^2+32
Click here to see answer by funmath(2925)

Question 55014: Solve using matrices
2x-3y=4
5x+4y = 33
Click here to see answer by Hook(36)

Question 55057: f(x)=7/5-x having trouble solving this question
Click here to see answer by Cintchr(481)

Question 55074: How would I find the distance to the nearest hundredth between the points (-6-5) and (-1,3)?
thanks much!
Click here to see answer by Hook(36)

Question 55080: Factor completely. 12x^3 – 3xy^2 I got 3x(4x – y)(x + y) Is this correct
Click here to see answer by rchill(405)

Question 55084: To state in interval notation the absolute value of 2x-2 is greater than or eq to 1/2 do I move the -2 and change the sign of the equality?
thank you!
Click here to see answer by stanbon(57387)

Question 55101: Solve: 2x^2 - 4x = 6
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Question 55100: Factor: (3mp - 12mr)-(4nr - np)
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Question 55100: Factor: (3mp - 12mr)-(4nr - np)
Click here to see answer by Earlsdon(6287)

Question 54335: Use the five-step method to solve. Check your answer.
The sum of a number and it's reciprocal is 10/3. What is the number?
Click here to see answer by rchill(405)

Question 55099: Factor: 36x^2 - 72 + 35
Click here to see answer by stanbon(57387)

Question 55099: Factor: 36x^2 - 72 + 35
Click here to see answer by rchill(405)

Question 55099: Factor: 36x^2 - 72 + 35
Click here to see answer by Earlsdon(6287)

Question 55078: question states:
from a square piece of cardboard with width x inches, a square of width x-3 in is removed from the center. write are of remaining piece as a function of x
Click here to see answer by rchill(405)

Question 55103: Simplify: 2a -10/a - 5

Click here to see answer by stanbon(57387)

Question 55110: determine vertex of y=x^2-8x+22
this is what I did (after lots of hair pulling)

y=x^2-8x+22
y-22=x^2-8x
y-22+16=x^2-8x+16
y-22+4=(x-4x)^2
y-18=(x-4x)^2
y=(x-4x)^2+18
answer: (-4,18)

Am I on the right track?
Click here to see answer by stanbon(57387)

Question 55113: explain how the graph of y-5=(x-3)^2

This is what I did.
y-5=(x-3)^2
y=(x-3)^2+5
answer: y=x^2 right 3 units and up 5
??? right or way off?
Click here to see answer by rchill(405)

Question 55116: given f(x)=5x+7 and g(x)=x^2+7, find (g times f)(x)
Click here to see answer by rchill(405)

Question 55123: find the point on the positive y-axis that is a distance 5 from the point P(3,4)
Click here to see answer by rchill(405)

Question 54211: Complete:
If m/n = p/q,
What is true about the product of the means?
Click here to see answer by rchill(405)

Question 55109: find maximum value of y=-x+6x
Click here to see answer by Hook(36)

Question 55108: an object is projected upward from the top of a tower. its distance in feet above the ground after t seconds is given by s(t)=-16t^2+64t+80. how many seconds to reach ground level?
Click here to see answer by ankor@dixie-net.com(15660)

Question 54782: Please help me solve this Equation : x arrow 2x=3
Click here to see answer by ms yonna(1)

Question 55209: How do you solve the problem f(x)= (9x + 2)/ (3x + 6)? I tried plugging in zero for the x but that doesn't help me at all. Please help!
Click here to see answer by tutorcecilia(2152)

Question 55383: If we translate the expression "six times the sum of a and b" into algebraic symbols, then we obtain:
Click here to see answer by stanbon(57387)

Question 55328: Simplify. Assume that no denominator equals zero.
(2t^2)^3/(2t^3)^2
Click here to see answer by Cintchr(481)

Question 55424: f(x)=-3x+2 and g(x)=2x+9: find (g*f)(x)
thank you
Click here to see answer by funmath(2925)

Question 55533: Rewrite each equation as a function of x.
-3x+4y+11
McGraw Hill 6th edtion, chapter 7.5 exercise #18
Thanks for your time!!!!
Click here to see answer by funmath(2925)

Question 55456: I have a pre test quiz question I have never seen before, I have tried to understand it and have asked if the question is written out right, which it was. The question is ......
rewrite the euation y = print_coeff (m,1) x print_const (b) as a funtion of x
I have worked it but not sure about my answer, the answer I have come up with so far is y = mx + b , x = ( y - b ) / m , but what about the 1? Am I close or not, please help, Thanks bunches
Click here to see answer by stanbon(57387)

Question 55709: Determine algebraically whether this function is odd, even, both, or neither:
f(x) = (3[x]) / (1-x^2)
(the [x] is an absolute value)
Click here to see answer by stanbon(57387)

Question 55710: For the function, find the average rate of change of f from 1 to x.
[f(x) - f(1)] / x-1
x does not equal 1.
Click here to see answer by stanbon(57387)

Question 55692: Factor out the greatest monomial factor from 3x^3 - 12x. Then factor the remaining binomial.
Click here to see answer by tutorcecilia(2152)

Question 55718: Given f(x) = 3x and g(x) = 3/x+1, find f/g(x) and state its domain.
Please help! I don't even know where to start!
Click here to see answer by stanbon(57387)

Question 55689: Solve: x^2 - x - 20 = 0
Click here to see answer by tutorcecilia(2152)

Question 55744: Can you explain the Composition of Functions
(g o f)(2)
(f o g)(x)
Click here to see answer by stanbon(57387)

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