Questions on Algebra: Rational Functions, analyzing and graphing answered by real tutors!

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Question 91449: still don't understand how to do these two problems
HELP
y = 4x - 2 shift down 3 and right 2 ????????????????????
y = -1/2x^2-2 shift left 4 and widen by 2
need to grpah first equation and new one
THANKS
llo

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Question 91553: I am not understanding domains. My assignment is to state the domains for:
g(x)=2x + 1/x - 3
h(x) =3x^2 + 5x - 3
l(x) = 2x + 3
m(x) = 3/x^2+7

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Question 91647: I have three promblems to answer in a fast time,
add rational expression with common deneminator
subtract and write in lowest terms
I ask the wrong question bummer, here is the correct one
7x-2w/9x - 6x+2w/9x
Thank you for this help

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Question 91739: How would you explain square roots, cube roots, nth roots, and radicals? What are some limitations of square root?

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Question 91726: Reflect on what you have learned about rational expressions and their applications, and then consider how you might apply rational expressions to your daily life. Explain this application, and discuss what the equation might be.
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Question 91761: Add rational expressions with common denominator
9z+ - z+
Thank you for this help

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Question 91752: One car travels 30 km/h faster than another. In the same time one travels 200 km, the other goes 320 km. Find the speeds.
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Question 91821: I need help understand how to begin with f(x) = x squared and f(x) = X+1
I took a summer course and it's so fast I'm not getting it. Final is Tuesday. HELP!!!!

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Question 91924This question is from textbook
: 2 sqrt(25/16) ???? how do you simplify this??This question is from textbook

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Question 91878: simplify
a. x+16
b. x-18
c. x-16
d. x+18

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Question 91937: find the LCD for 9/a^2+8a+16 and 6a/5a+20
a. 5(a+4)^2
b. (a+4)(5a+20)
c. 5(a+4)^3
d. (a^2+8a+16)(5a+20)
my final is tomorrow and i still dont understand this LCD concept.

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Question 91936: which expression represents the sum of 7/a-1 + 3/2a-2
a. 17/2(a-1)
b. 10/2a-2
c. 17/2(a-1)^2
d. 10/3a-3
when i added this up on my calculator it gave me the same thing. i dont understand how to work this out. any help would be appreciated.

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Question 91935: find the LCD for -5/x^2t and x/t^3
a. x^2t^3
b. x^2t
c. xt^2
d. x^2t^2
i dont understand how to find the lcd at all im really confused with this because on the first fraction both x and t are the denominator. but the second fraction has them split up on top and bottom. xan someone help me clear up how to work this out?

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Question 91922This question is from textbook
: can someone help me figure out the sqroot of 3/25?This question is from textbook

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Question 92056This question is from textbook
: please help me solve and simplify sqrt(1/2) * ( sqrt(8) + sqrt(2))This question is from textbook

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Question 92069This question is from textbook
: can someone help me simplify (6i)^2 ?This question is from textbook

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Question 92096: Use Descartes' Rule of Signs to determine the possible number of positive and negative zeros for the function P(x) = -3x^5 -7x^3 -4x - 5.
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Question 92096: Use Descartes' Rule of Signs to determine the possible number of positive and negative zeros for the function P(x) = -3x^5 -7x^3 -4x - 5.
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Question 92098: For the function f(x) = 7-3x, find its inverse and graph both on the same set of axes (be sure to label which is which)
Thanks very much.

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Question 92080This question is from textbook Algebra and Trigonometry
: 4) (a) What is the sum of the roots of the equation ax^2 + bx + c = 0?
(b) What is the products of its roots?
(a)________
(b)________
please tell and show me how to do this
This question is from textbook Algebra and Trigonometry

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Question 92187This question is from textbook
: write each fraction as a terminating or repeating decimal 3/8 huh? i really dont get thisThis question is from textbook

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Question 92199This question is from textbook Algebra and Trigonometry
: (a) Graph the function f(x)= x^3 - 4
(b) Approximate to the nearest tenth, the real root of the equation
f(x)= x^3 - 4 = 0 please help me
This question is from textbook Algebra and Trigonometry

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Question 92312This question is from textbook Blitzer College Algebra
: I am trying to solve a function that I must graph and I am having a problem solivng the equation,the problem is find the h,the x-coordinate of the vertex of this parabola f(x)=x2+4x+1 and then i have to find the h,the x-coordinate of the vertex of this parabola can you help then I have to substitute the two whole number values to the left and right of h into the function to find the corresponding y to do the graph.This question is from textbook Blitzer College Algebra

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Question 92310: Find the horizontal and vertical asymptotes of the following:
A) f(x)= 2x+3/x+2
B) g(x)= 5x / x^2+1

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Question 92330: Write an equation of the line that passes through the given point and has the given slope
(3,1), m+4

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Question 92389: find the sum. express your answer in simplest form. 14a^2/2b + 3a/2b
a. 14a^2+3a/2b
b. 11a^2/2b
c. 14a^2+3a/4b
d. 11/2b
i got a for the answer but my friend said you have to subtract and so i was wondering if someone could clear that up for me?

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Question 92388: simplify (3x^2+7x-40)+(x+5)
a. 3x+2
b. 3x+8
c. 3x-2
d. 3x-8
my test is tomorrow and i still dont understand how to work this kind of problem. i've tried to divide but it hasnt given me one of the choices i have for answers. please help?

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Question 92398: what is 2 times the square root of 32 subtracted from the square root of 30?
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Question 92419This question is from textbook College Algebra
: Consider the following graph of y = f(x).

a) If h(x) = f(x) + 2, what would the new coordinates of P be after the shift? Give answer in (x, y) form.
Answer:

b) If , what would the new coordinates of P be after the reflection? Give answer in (x, y) form.
Answer:
This question is from textbook College Algebra

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Question 92421This question is from textbook College Algebra
: Suppose the graph of is shifted to obtain each the following graphs. What is the equation of the function, g(x), for each graph?
a) Parabola Graph vertes (-3,0)

Answer:

b) Parabola Graph vertex (4,0)

Answer:
This question is from textbook College Algebra

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Question 92420This question is from textbook College Algebra
: Consider the function .
a) Find h, the x-coordinate of the vertex of this parabola.
Answer:
Show your work here:
b) Substitute the two whole number values immediately to the left and right of h into the function to find the corresponding y. Fill in the following table. Make sure your x-values are in increasing order in your table.
Answer:
x y


h =__


c) Use MS Excel to graph the function by plotting the points found in the table in part b.
Answer:
This question is from textbook College Algebra

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Question 92780: Use the Pythagorean theorem to determine the length of each line segment. Round to the nearest hundredth where appropriate.
(1,-1)and (3,2)

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Question 93021This question is from textbook Algebra 2
: name the additive inverse and multiplicative inverse of 6/7This question is from textbook Algebra 2

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Question 93032: The base of a ladder is 14 feet away from the wall. The top of the ladder is 17 feet from the floor. Find the length of the ladder to the nearest thousandth.
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Question 93088This question is from textbook
: Please help me solve this problem:
the direction are as follow: Find the domain of the function, use interval notation:
f(x)= 3 divided by (x+4)
This question is from textbook

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Question 93087This question is from textbook
: Please help me with this equation:
It is a rational expression and the directions are: Perform the operation and simplify completely:
(5) divided by (x-1) mmultiplied by (1-x) divided by 25(x-2)
This question is from textbook

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Question 93130: Find the distance between (–4, 0) and (–5, –3)
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Question 93084This question is from textbook
: Please help me with this equation:
It is a rational expression and the directions are: Perform the operation and simplify completely:
(2x-1) divided by (x+3) minus (1-x) divided by (x+3)
This question is from textbook

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Question 93085This question is from textbook
: Please help me with this equation:
It is a rational expression and the directions are: Perform the operation and simplify completely:
(3) divided by (x-1) plus (5x) divided by (3x+4)
This question is from textbook

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Question 93424This question is from textbook
: also please help me solve for the unknown and show work thanks
sqrt (x+11) = sqrt (x) +1
This question is from textbook

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Question 93466: I think that i chose the right category, but i am not sure. My summer math packed says graph the following, indicate intercepts where appropriate
1. y= -3x+6
2. y= 3(x-1)^2 -3 (^2 means squared)
If you could help, that would be wonderful. thank you so much and God bless.

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Question 93585: Describe the values of b in the following equations, that will give one or more real number soulutions.
(a) 3x^2+bx-3=0
(b) 5x^2+bx+1=0
(c) -3x^2+bx-3=0
(d) Write a rule for judging if an equation has solutions by looking at it in standard form.

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Question 93584: I having a hard time, I need to provide an example of using rational expressions in every day life. Can someone help? I'm lost.
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Question 93628This question is from textbook
: how many terms are there in the following sequence?
1,8,15,22....,113?
I'm not sure how to set this up at all?
This question is from textbook

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Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295, 2296..2340, 2341..2385, 2386..2430, 2431..2475, 2476..2520, 2521..2565, 2566..2610, 2611..2655, 2656..2700, 2701..2745, 2746..2790, 2791..2835, 2836..2880, 2881..2925, 2926..2970, 2971..3015, 3016..3060, 3061..3105, 3106..3150, 3151..3195, 3196..3240, 3241..3285, 3286..3330, 3331..3375, 3376..3420, 3421..3465, 3466..3510, 3511..3555, 3556..3600, 3601..3645, 3646..3690