Questions on Algebra: Graphs, graphing equations and inequalities answered by real tutors!

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Question 143739: 8. Solve
Click here to see answer by jim_thompson5910(28598)

Question 143740: 9. Solve
Click here to see answer by jim_thompson5910(28598)

Question 143741: 10. Solve
Click here to see answer by jim_thompson5910(28598)

Question 143799: Hi hows everyone today! I need your help please....
Find the slope of any line perpendicular to the line through points (0, 4) and
(-3, -6).
Thanks a million!
Click here to see answer by nabla(475)

Question 143825: This question is from MathXL
The question is stated as: Find an equation of the line containing the given pair of points. (3,5) and (9,9).
My first step was to identify x1 x2 and y1, y2 so I had 9-5 /9-3 . My answer to that was 4/6 reduced to 2/3. So to write an equation I was trying to put it in the form of y=mx+b So my question is if the 2/3 is x then how do I now get B?
Click here to see answer by Earlsdon(6287)

Question 143868: I have to know how to solve permutations. Could you please list the process, step by step?
Click here to see answer by stanbon(57387)

Question 143896: 7x-9y+10=0 how do i graph this
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Question 143932: graph the function? f(X)=(x-2)^2+1

Click here to see answer by nabla(475)

Question 143930: solve the system of equation by graphing. then classify the system as consistent aor inconsistent and the equations as dependent or independent
3x - 9y = 81
2x - 6y = -16
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Question 144026: i can't seem to get this expression factored. Thank you in advance for any help.
6x2 - 28x + 16
Click here to see answer by jim_thompson5910(28598)

Question 144027: Someone, please help. When you simplify with a parenthesis, do you invert first. Thank you very much.
7(x^4)^5 (-4x^2)2
Click here to see answer by stanbon(57387)

Question 144160: If g(x) is an inverse of f(x)then how do the ordinate and abscissa coordinates on the points of f(x) map onto coordinates of g(x)?
Click here to see answer by stanbon(57387)

Question 144175: need to solve algebraically

-3 > 7/8x -1
-2 > 7/8x
-16x > 7
x > -7/16
Click here to see answer by Alan3354(30993)

Question 144266: Write the equation of the line passing through (7,1),(7,-4), and (7,4)
THanks
Click here to see answer by vleith(2825)

Question 144363: Solve and graph:
, D=(Integers)
Click here to see answer by Edwin McCravy(8909)

Question 144362: Solve and graph:
-3x - 13 > -4, D=(Integers.

Click here to see answer by jim_thompson5910(28598)

Question 144362: Solve and graph:
-3x - 13 > -4, D=(Integers.

Click here to see answer by 700007(1)

Question 144394: x+y=3
x-y=5
Click here to see answer by jim_thompson5910(28598)

Question 144394: x+y=3
x-y=5
Click here to see answer by stanbon(57387)

Question 144395: x+y=8
2x-3y=1
Click here to see answer by jim_thompson5910(28598)

Question 144439: How would you factor this quadratic expression completely, so you can find the roots of the expression? 20x2 + 13x + 2. i don't even know where where to start. Please help me someone. Thank you very much in advance!!
Click here to see answer by vleith(2825)

Question 144449: I barely even know how to find the quadratic formula of f(x), i don't even know if i can find the roots of this given function, and then graph the function of g(x) = x2 - x - 12. What do i do just to get started on this someone. Any help would be appreciated. Thank you in advance.
Click here to see answer by nabla(475)

Question 144473: HELP!!! I have to find the slope and the y-intercept...
Page 434
Number 18
y=-8x-7
Click here to see answer by vleith(2825)

Question 144472: Hi please help...Thanks...
Page 434
Number 8
I have to find the slope of a straight line that passes through the given pair of points...
(5,6) and (-3,1)
Click here to see answer by vleith(2825)

Question 144471: I need to answer this question...Please help I am lost..Thanks :)

Page 445
Number 2
Explain when to use a solid line or a dashed line when graphing linear inequalities in two variables..
Click here to see answer by vleith(2825)

Question 144474: Ok I am stumped...
Page 455
Number 14
I have to find the domain and range of the relation and then determine whether the relation is a function...
{(85,3),(95,11),(110,15),(110,20)}
Click here to see answer by vleith(2825)

Question 144470: I have to find the missing coordinate to complete the ordered-pair solution to the given linear equation..Can you help me? Thanks....
Page 413
Number 16
5x-2y=9
(a) (7, )
(b) ( ,-7)
Click here to see answer by vleith(2825)

Question 144469: Can you please help me on this? Thanks I have no clue how to do it.
Find the missing coordinate to complete the ordered-pair solution to the given linear equation....
y=6x+5
(a) (0, )
(b) (3, )
Click here to see answer by nabla(475)

Question 144522: Please help me with this:
How many asymptotes does R(x)=x^3-1 divided by x^2-1 ?
a) 3
b) 0
c) 2
d) 1

Click here to see answer by stanbon(57387)

Question 144519: Please help me this this problem:
What is the equation for the asymptote for: R(x)=x^3+1 divided by x^2+1

a) R(x)=x
b) R(x)=x+1
c) x=-1
d) R(x)=-1
Click here to see answer by stanbon(57387)

Question 144520: Please help with the following:
Consider a rational function whose numerator is . What is the maximum number of vertical asymptotes it may have?
a) 2
b) 1
c) 1/2
d) The number defines the functions zeroes, not its vertical asymptotes
Click here to see answer by stanbon(57387)

Question 144517: Please help me with this question:
What is the equation of a line, g(x), that is perpendicular to f(x)=1/2x+2 and passes through (0,2)?
a) g(x)=-4x+2
b) g(x)=-4x-2
c) g(x)=-4x-8
d) g(x) can not be determined with this information
Click here to see answer by Alan3354(30993)

Question 144540: Hello I am having problems and any help would be appreciated greatly...
Page 457
Number 40
f(x)=3-5x
(a) f(-1) (b) f(1) (c) f(2)
Given the following functions, find the indicated values.
Click here to see answer by Alan3354(30993)

Question 144556: Solve the system by graphing.
1. 4x+y=14
16x+4y=56
2. 6x+y=36
x+3y=23
Click here to see answer by jim_thompson5910(28598)

Question 144094: Solve and graph.
-3x - 13 > -4, D = (Integers)
Click here to see answer by jim_thompson5910(28598)

Question 143950: Solve and graph:
-3x - 13 > -4, D = (Integers)
Click here to see answer by jim_thompson5910(28598)

Question 143013: Determine how many solutions exist
Use either elimination or substitution to find the solutions (if any)
Graph the two lines, labeling the x-intercepts, y-intercepts, and points of intersection
4x = 8 and 5y = 15

Click here to see answer by jim_thompson5910(28598)

Question 144571: Someone please help me to factor this quadratic expression completely, and find the root of the expression. 49x2 - 14x - 3 Thank you very much.
Click here to see answer by jim_thompson5910(28598)

Question 144574: i need to use the discriminant to determine the number of solutions of this quadratic equation, and whether the solutions are real or complex. i have to find the roots, but i do have to determine the number and types of solutions. x2 + 6x - 7 = 0
Click here to see answer by jim_thompson5910(28598)

Question 144618: plot intercepts to graph equation: x+y=5
plot intercepts to graph equation: 6x-4y=-12
graph linear equations: f(x)=4x+2
graph linear equations: f(x)=2x+6
thanks.
Click here to see answer by Alan3354(30993)

Question 144628: What does a "sixth order equation" mean? Examples?
Click here to see answer by jim_thompson5910(28598)

Question 144724: -5(x-5)<30
Click here to see answer by jim_thompson5910(28598)

Question 144744: I am having some trouble graphing this eqaution: y=x^2-2x-8
The question asks that I find the y and x intercepts and the vertex. I got the x intercepts at 4 and-2, the y intercept at 0,-8 and the vertex at -1,-7. The vertex doesnt seem to work though. I'd appreciate any help I could get.
~Kyle
Click here to see answer by jim_thompson5910(28598)

Question 144745: I need some help solving this equation. 3(x-2)^2=12 Im just not sure where to start and Im not sure what to do with the 3 out front. I would be very grateful for any help I can get. Thank you.
~Kyle
Click here to see answer by jim_thompson5910(28598)

Question 144774: Here is a word problem that has been giving me some trouble. I would love some help on it. an object is dropped out of an airplane at 784 feet above the ground. the height(h) above the ground (t) seconds after it was dropped is given by the formula h=-16t^2+784. How long will it take the object to hit the ground? Please, this one is killing me.
Kyle
Click here to see answer by nabla(475)

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