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

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 Question 637344: What is the value of the slope of the tangent to the curve f (x) = x ^ 3 - x ^ 2 - 2x at x = +2 Thanks is advance Click here to see answer by ewatrrr(11176)

 Question 637358: hello to see if anyone can help If I have this function f (x) = x^3/3 - x^2/2 - 2x + 2 and the tangent to the curve at the point (-1, 19/6) What would be the equation of the tangent line? Thanks for the help Click here to see answer by stanbon(60771)

 Question 637360: which is the derivative of this function 4x^3/2 i want to be sure i have the correct result Click here to see answer by stanbon(60771)
 Question 637360: which is the derivative of this function 4x^3/2 i want to be sure i have the correct result Click here to see answer by ewatrrr(11176)

 Question 637332: Please help me! What is the domain and range of this polynomial function? x^3+x^2-x-1 Click here to see answer by MathLover1(7480)
 Question 637332: Please help me! What is the domain and range of this polynomial function? x^3+x^2-x-1 Click here to see answer by jsmallt9(3438)

 Question 637331: The calculation of lim 5x + 5h + 1 - (5x + 1)/h h -> 0 Click here to see answer by ewatrrr(11176)
 Question 637331: The calculation of lim 5x + 5h + 1 - (5x + 1)/h h -> 0 Click here to see answer by jsmallt9(3438)

 Question 637084: need your help with this function : piecewise function: ------------x^2 – 4 if x < 3 g(x) = ------------2x – 1 if x > 3 The limit of the function g as x approaches 3 is as follows: Thanks in advance Click here to see answer by jsmallt9(3438)

 Question 637403: Derivative of this function please h( x) = -2x^2/x-1 Thanks Click here to see answer by solver91311(18785)
 Question 637403: Derivative of this function please h( x) = -2x^2/x-1 Thanks Click here to see answer by ewatrrr(11176)

 Question 637405: what is the domain of f(x)=x power 2 -5x+3+ Click here to see answer by solver91311(18785)

 Question 637406: Good day tutors, I need your help with this function How do I calculate the slope of f(x) = -3x˛ + 5x at the point P(-1,-8) ? Click here to see answer by ewatrrr(11176)
 Question 637406: Good day tutors, I need your help with this function How do I calculate the slope of f(x) = -3x˛ + 5x at the point P(-1,-8) ? Click here to see answer by Edwin McCravy(9717)

 Question 637444: Good dayy please help me with this problem. sorry for my bad english The line tangent to the graph of f( x) = 1/(3x-2) in x = 0 what would be the equation thanks Click here to see answer by ewatrrr(11176)

 Question 637443: What is the slope of the tangent to the curve y = x^2 – 6x + 9 at the point where x = 2 Click here to see answer by ewatrrr(11176)

 Question 637492: Determine whether the formula describes y as a function of x. Explain your reasoning. y = -3x2 - 7x - 6 Click here to see answer by stanbon(60771)

 Question 637552: Determine with reasons, whether the following functions are one to one. (a) f(x)=x^3 + 3^x (b) g(x)= 5ln(x^2+1) Thanks heaps! Click here to see answer by DrBeeee(577)

 Question 637561: Find the Domain and range of the following functions. Note: this is a piecewise function. f(x)= {x+9, x<-3}, {-2x, abs(x)<=3}, {-6, x>3} Thanks heaps! Click here to see answer by stanbon(60771)

 Question 637603: Find the domain and range of values of the following functions. Note this is a piecewise function. a) f(x)= {x/abs(x), x does not=0}, {0, x=0} abs= absolute value Thank you heaps! Click here to see answer by solver91311(18785)

 Question 637643: good morning can someone help how to resolve this function (x + h)^2 – 3 (x + h) – ( x^2 – 3x)/h h -- >0 Click here to see answer by ewatrrr(11176)

 Question 637664: (x + x)^2 – 3 (x + x) – ( x^2 – 3x)/x x --->0 good day can someone help me with this one, the x its a triangle x, i dont know how to put the sign Click here to see answer by ewatrrr(11176)

 Question 638252: good day please help me to solve this problem If i have this function : f( x ) =1+ 12x – x^3 which is the minimun relative? Click here to see answer by Tatiana_Stebko(1410)
 Question 638252: good day please help me to solve this problem If i have this function : f( x ) =1+ 12x – x^3 which is the minimun relative? Click here to see answer by stanbon(60771)

 Question 638320: Four times a number is subtracted from 8. The result is 32 Click here to see answer by stanbon(60771)

 Question 638419: domain of y=2x^2 Click here to see answer by reviewermath(721)

 Question 638423: How would I find the domain of y = 3rd root (x - 6) / square root (x^2 - x - 30) ? Click here to see answer by stanbon(60771)

 Question 638400: I am trying to find out what f/g is for f(x)= x^2-2x-24 and g(x)=x^2-x-30. I know that you must divide them and I successfully completed the other parts to this problem which was finding f+g, f-g, and f*g. I just can't remember how to divide equations with variables in them. This is the problem that needs to be solved. x^2-2x-24/x^2-x-30. Also I need to specify the domain. Thank you Click here to see answer by nerdybill(7090)

 Question 638495: in which poin this function is growing f( x) = x^2(x – 4)^2 thanks Click here to see answer by MathLover1(7480)

 Question 638521: Given the function f(x) = x^3+ 3x Find the equation of a secant line containing the given points: (1, f(1)) and (2, f(2)) Please help me! I can't seem to get this one down. Thank you. Click here to see answer by Alan3354(34677)

 Question 638522: Graph the following function using transformations.  Be sure to graph all of the stages on one graph.  State the domain and range.    For example, if you were asked to graph  y= x^2+ 1 using transformations, you would show the graph of y = x^2 and the graph shifted up 1 unit.  Please do not show only the final graph. y=x^2+12x I can't figure out what this means. I have seen helpful sites over and over again and am still at a loss on how to solve this one. Please help. Click here to see answer by stanbon(60771)

 Question 638587: How would I find the domain of y = root(x-3) - root(x+3) ? And how would I write that? What about the domain of y = (x^2 + 8x + 12)/4throot(x+5) ? Or y = log(2x-12) ? Click here to see answer by stanbon(60771)

 Question 638593: How would I determine if the relation is even, odd, or neither? 1. f|x| = |x| - x^2 + 1 2. f(x) = 4x^2 - 4x + 4 3. y = e^x - 1/e^x 4. 3y^3 = 4x^3 + 1 5. 3x = |y| Click here to see answer by stanbon(60771)

 Question 638589: How would I find the domain of y = root(tanx) ? How would I find the domain of y = x / cos(x) ? Click here to see answer by stanbon(60771)