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

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Question 541801: When writing down a function and a domain, do the numbers in the set HAVE to be written in a certain order? Should they necessarily be written in order as on the number line? Ex: neg3, neg1, 3, 5
rather than 3, neg 1, 5, neg 3?

Click here to see answer by Theo(13342)

Question 543111: What is a function rule for this function? (0,1) (1,2) (2,4) (3,8) (4,16)
Thanks so much!
Click here to see answer by jpg7n16(66)

Question 543416: what is 4,420 minus 8%?
Click here to see answer by umnikmo(75)

Question 543594: f(x)=2x-5
f(2)
I dont know how to solve this problem.
Click here to see answer by IFY(62)

Question 543594: f(x)=2x-5
f(2)
I dont know how to solve this problem.
Click here to see answer by solver91311(24713)

Question 543806: f(x)=1/(4x+3) Domain
Click here to see answer by nerdybill(7384)

Question 543919: Please help me solve this problem Find the domain of f(x)=1/(x-2) cubed
Click here to see answer by stanbon(75887)

Question 544155: Please help me help someone else. I don't know where to even begin. Thanks!
ln(5x + 4) � ln(3) = ln(3x +1)
Click here to see answer by ankor@dixie-net.com(22740)

Question 544814: what is the slope intercept form of x/3+y/5=1
Click here to see answer by stanbon(75887)

Question 544820: find the domain of the function g(x)=10 over 6-5x
Click here to see answer by rapaljer(4671)

Question 544867: Determine whether the following relation is a function. (2,4) (4, 6) (6,8) (8,10)
Click here to see answer by saifoo.khan(162)

Question 544867: Determine whether the following relation is a function. (2,4) (4, 6) (6,8) (8,10)
Click here to see answer by fcabanski(1391)

Question 544946: I'm takng a test today and I need help on functions because they are confusing please help me if you can i'm in 8th grade doing high school work please help me
Click here to see answer by ankor@dixie-net.com(22740)

Question 545340: What is the RANGE of f(x) = -2/3x + 1
Domain. {-6, -3, 9}
Click here to see answer by rfer(16322)

Question 545813: Let f(x)= sqrt (1-cosx) , what is the domain of f(x)?
More than just the answer, I need a good explanation to the answer. Please help.

Click here to see answer by stanbon(75887)

Question 545645: Let f(x)= -2x^2 +4x +5
(a) find the vertex
(b) find the leading co-efficient
(c) what is the shape of the graph?
(d) what is the axis of symmetry?
Thank you in advance for your assistance! I appreciate it and I look forward to seeing your answer.
Click here to see answer by ankor@dixie-net.com(22740)

Question 546026: Which equation could represent "the area of a square as a function of a side"?
Click here to see answer by stanbon(75887)

Question 546098: how do I solve this problem: s(t)= -16t^2+192t+224. Find the maximum height reached
Click here to see answer by Alan3354(69443)

Question 546151: Evaluate each function rule for x = -2

f(x)= x -2
Click here to see answer by nyc_function(2741)

Question 546113: find equation of a parabola with vertex at(-2,3)and passing through (1,21)
Click here to see answer by scott8148(6628)

Question 546501: what is the domain of a rational function when the denominator cannot be zero.i.e, (x^3+1)/(x^2+2x)
Click here to see answer by nerdybill(7384)

Question 546928: 2/3x+1=1/2

Click here to see answer by rfer(16322)

Question 546588: suppose f(x) is a continuous, monotone function on the interval [0,2]. explain why the maximum of f(x) is either f(0) or f(2).
Click here to see answer by richard1234(7193)

Question 547070: In 1990 the population of Anchorage Alaska was about 226000 and increasing at an annual rate of about 2.5%. When will the population reach 1 million? Give the year and the month.
Click here to see answer by josmiceli(19441)

Question 547280: I'm trying to find the axis of symmetry for this probllem: x^3-4y^2-1=0 I don't know what to do about the Y in the expression. It's confusing. And the problem says: determine symmetries (x-axis, y-axis, and origin) for the graph of the following equation.
Click here to see answer by stanbon(75887)

Question 547634: f(x)=4/x-2
Click here to see answer by edjones(8007)

Question 547695: The range of the function y=3x-2 is 1, 7, 13, 16, 19. what is the domain
Click here to see answer by mananth(16946)

Question 547806: Determine the domain of the function f(x)= 4/(x-1)^3
Click here to see answer by josmiceli(19441)

Question 548093: Please help me get 6 points that are solutions to this equation: 3x-2y=10
Click here to see answer by Alan3354(69443)

Question 548093: Please help me get 6 points that are solutions to this equation: 3x-2y=10
Click here to see answer by oberobic(2304)

Question 548216: Which of the following has a slope of 2 and a y-intercept of 4?

Click here to see answer by Alan3354(69443)

Question 548186: I have two questions
1) What is the range of the function f(x)= 2x^2/x^2-25
2) At what point does the normal to y=−3−2x+4x^2 at (1−1) intersect the parabola a second time?
thank you :)
Click here to see answer by Alan3354(69443)

Question 548292: Can you help me solve this equation?

Click here to see answer by mathie123(224)

Question 547542: For the following function, find f(a+h)-f(a)/h, f(x)=5x^+4x-8
Click here to see answer by KMST(5328)

Question 547550: Determine whether the relation is a function: 8y = 7 + 3x
Click here to see answer by KMST(5328)

Question 548505: f(x)=2x+4. Find f(-3) and f(5).
Click here to see answer by stanbon(75887)

Question 548611: Find the minimum or maximum value of the function 2x^2-x+3.
Click here to see answer by stanbon(75887)

Question 547896: solve 2a+(2/3)=a-(1/3)

Click here to see answer by jim_thompson5910(35256)

Question 549208: Can you help me? I need to understand how to state the domain, {(x,y) | y= 3x-2/x+4}
Click here to see answer by nyc_function(2741)

Question 549214: A.write a function rule 2 calculate The cost of buying bananas @ $.39a pound B. How much would it cost to buy 3.5 pounds of bananas?
Click here to see answer by nyc_function(2741)

Question 549175: what is the domain of f(x)= -3x+ 9 function in interval notation?
Click here to see answer by KMST(5328)

Question 549306: What's the domain of f(x)=x/(x^2+2x-3
Click here to see answer by mathie123(224)

Question 549306: What's the domain of f(x)=x/(x^2+2x-3
Click here to see answer by stanbon(75887)

Question 549530: √((x-1) (x+2)^2)�(x-3)
how to find the domain of this function?

Click here to see answer by Edwin McCravy(20056)

Question 549591: f(x)= 2x/3x+12
The / means over, it's a fraction
Click here to see answer by mathie123(224)

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