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

Tutors Answer Your Questions about Graphs (FREE)

Question 151742: How do you solve and graph an inequalitie like x - 2 > 2x + 1 or -10 > -2x - 2?
Click here to see answer by jim_thompson5910(35256)

Question 151741: How do you solve and graph an inequalitie like x - 2 > 2x + 1 or -10 > -2x - 2?
Click here to see answer by jim_thompson5910(35256)

Question 151733: How do you graph these inequalities 2x > -6 and x - 4 < 3?

Click here to see answer by jim_thompson5910(35256)

Question 151770: find the x and y intercepts of each equation:
a)
b)
Click here to see answer by orca(409)

Question 151769: Can you help me with some problems.I have a few of these problems maybe if you help me with this one i can figure out how to do the others.
Demand equation. Helen's Health Food usually sells 400 can of ProPac Muscle Punch per week when the price is $55 per can. After experimenting with prices for some time. Helen has determined that the weekly demand can be found by using the equation
d=600-40p
where d is hte number ofcans and p isthe price per can.
a) WillHelen sell more or less Muscle Punch if she raises her price from $5 ?
b)What happens to her sales every time she raises her price by $1 ?
c) Graph the equation.
d) What is the maximum price hat she can charge and still sell at least one can?
Click here to see answer by ankor@dixie-net.com(22740)

Question 151858: I am trying to graph the inequality . I dont understand how to simplify the inequality towards where I can graph it.
Click here to see answer by jim_thompson5910(35256)

Question 151864: This is not in textbook. Solve following inequalities, create table to show answers.

2x + 2y > or equal to 6
I tried 2x + 2y - 2x > 0r equal 6 - 2x
2y > or equal -2x +6
2y div by 2 > or equal -2 + 6 div by 2
Y > or equal to -1 + 3
This is what I got, which I'm sure is wrong. Even if I'm close I don't know how to make the table. Could you please help me? Thank-You
Click here to see answer by scott8148(6628)

Question 151953: Decide whether the pair of lines is parallel,perpendicular, or neither
Please help me solve the equation: 4x+2y=5
2x-4y=1
Click here to see answer by checkley77(12844)

Question 151931: Dear Tutor,
I really need help on this question and I have no idea how to start it:he inequality having the shaded region as its graph is:
(A) y>-3x+12
(B) y (is greater than or equal to) -3x+12
(C) y<-3x+12
Click here to see answer by mangopeeler07(462)

Question 152057: g(x)=sqrt(3-x)
a.) Find the domain and range of the function
b.) Sketch the graph
Click here to see answer by vleith(2983)

Question 152054: Given g(x)=/3-x
a.) Find the domain and range if the function
b.) Sketch the graph
Click here to see answer by vleith(2983)

Question 152142: Find the x- and y-intercepts of 7x � 2y = �5 and use these intercepts to graph...
I got (-5/7, -5/2) not sure if they are correct and cannot graph
Click here to see answer by nerdybill(7384)

Question 152158: Find the x- and y-intercepts of 4x + 3y = �12

Click here to see answer by vleith(2983)

Question 152189: Find the intercepts and then use them to graph the equation.
1.7x - 1.2y = 4.08
Graph the line.
Click here to see answer by mducky2(62)

Question 152259: |x|> 12
Click here to see answer by ankor@dixie-net.com(22740)

Question 152138: graph y = 2/3x -2
should graph points be (-2,3)
Click here to see answer by checkley77(12844)

Question 152130: I am unable to graph ( 3/2, -9/2)
Click here to see answer by checkley77(12844)

Question 152156: determine the slope of the line (2,3)
Click here to see answer by checkley77(12844)

Question 152335: Hey, I really need some help on this problem.. I just can't understand it. If you could help me I would really appricate it. Thanks in advance.

Write an equation for the line that is parallel in the given line and that passes through the given point.

#58) y = -3x ; (3,0)
Click here to see answer by Earlsdon(6294)

Question 152333: Can you please help me sketch the graph of this function?

Click here to see answer by nabla(475)

Question 152467: Solve the inequality and write the solution set in interval notation.
2 < |x| � 8
Click here to see answer by Fombitz(32388)

Question 152519: My problem is Find the equation of the line that contains the point (-2,3)(4,2).
I'm pretty sure this is a simple problem..I've just forgotten where to start. Help would be greatly appreciated. Thanks.
Click here to see answer by jim_thompson5910(35256)

Question 152425: graph equations

1.graph 6x+8=4x-2y
2. gragh y=/x/+2
Please help me. Thank you so much!!!
Click here to see answer by checkley77(12844)

Question 152543: graph = |1| +2
Click here to see answer by Fombitz(32388)

Question 152584: Which of the following is a line perpendicular to y = x + 4?
Click here to see answer by jim_thompson5910(35256)

Question 152585: What is the slope of the line that passes through (-4, -2) and the origin?
Click here to see answer by jim_thompson5910(35256)

Question 152577: Which of the following sets of values could be points on the graph of a function?
Set A
x = 6,6,6 and y = 1,2,3
Set B
x = 5,5,1/3 and y = -1,2,5
Set C
x = 1,2,3 and y = 3,4,5
Set D
x = 1,2,2 and y = 2,4,2
I think the answer is Set C based on the fact that there is a difference of 2 between x and y at the various values. Is that correct?
Thanks,
Steve Campanella
Click here to see answer by mducky2(62)

Question 152607: sketch the graph of the function. label the vertex.
y=x²-x-5
Click here to see answer by jim_thompson5910(35256)

Question 152607: sketch the graph of the function. label the vertex.
y=x²-x-5
Click here to see answer by mducky2(62)

Question 152574: We were given a set of data points today in class. We were told to find an equation for these data points. The equation pertains to graphing so I put the question in this category. I'm studying Patters & Relationships in Algebra 2 currently. Data is the X and Y coordinates.
X........Y
610.....915
631.....946
652.....978
673.....1009
Here's what I know from looking at this:
1) The X is independent variable, Y is dependent variable.
2) It is NOT linear because there is not linear progression in the Y
The equation I think might be correct is Y=.0165*X^3
Yet I contractdict it when I plug in the actual X coordinates for example..
Y=.0165*610^3
Y=.0165*226981000
Y=3745186.5 when it should be 915? What is up with that?
Please provide me with the correct equation and tell me how you found it. Thanks!

Click here to see answer by Edwin McCravy(20054)

Question 152716: Factor 3x^2-13x+12
Click here to see answer by jim_thompson5910(35256)

Question 152652: Which of the following is a reflection of f(x) = -x + 1 about the x-axis?
r(x) = x + 1
r(x) = x - 1
r(x) = -( x - 1)
None of the above

Click here to see answer by mducky2(62)

Question 152837: Sketch the graph of a function for which the domain is all values of X and the rang is -2 < y < 2.
Click here to see answer by Fombitz(32388)

Question 152835: Rudy must play 12 commercials during his 1-hr radio show. Each commercial is either 30 sec or 60 sec long. If the total commercial time during that hour is 10 min, how many commercials of each type does Rudy play?

Click here to see answer by mducky2(62)

Question 152930: Find a slope of a line perpendicular to each given line.
0=3+x
-3y=12x+9
Click here to see answer by nabla(475)

Question 152929: How do you solve a system by graphing?
Click here to see answer by nabla(475)

Question 152962: 4x+3≤-5 and 3x-2<7
I tried on the first and got x≤-2 and the second x<3 but the answer is said to be x≤-3, I don't know if I'm doing it wrong, or the answer is just wrong.
Click here to see answer by edjones(8007)

Question 152958: Air Travel
An airplane flew for 4 hr with a 20-mph tailwind. the return flight against the same wind took 5 hr. Find the speed of the plane in still air
d + r (t)

distance rate time
with wind r + 20
d

Click here to see answer by edjones(8007)

Question 153007: can you please help me find the slope and y-intercept of: (((y=3x-5)))
Click here to see answer by jim_thompson5910(35256)

Question 152925: solve each system by graphing.
y=-1
y=5/2x+4
Click here to see answer by checkley77(12844)

Question 153090: Complete the the given ordered pairs for the queations and graph the equations: What are the correct steps to solve. Help
X-Y=3
(0__,),(___,0)
(5,__),(2,___)
6x-5y=30
(o,__),(___,0)
(3,__),(___,-2)

Click here to see answer by Earlsdon(6294)

Question 152959: Office Expense. The monthly phone expense for an office is $1094 less than the janitorial expense. Three times the janitorial expense minus four times the phone expense is $248. What is the total of the two expenses?

Click here to see answer by orca(409)

Question 153158: Please help!!!

A ball is thrown upward with an initial speed of 50ft/sec. It's height after t seconds is given by h=50t - 16t^2.
A) What is the height of the ball after 1.3 seconds?
B) When does the ball hit the ground?
For A, the answer I worked out is 37.96 feet.
For B, I worked out 25/8 seconds = t, which doesn't seem right. Can anyone help?
Thank you!!!!
Click here to see answer by stanbon(75887)

Question 153188: I have a graphing question. I am new to using graphing calculators. I have worked out the super basic understanding of how to use the function portion of my TI-84 Plus. However, when I key in y1 for f(x)=x2+x=-9, and I try to graph it and/or calculate it -- I never get the correct vertex -- which is suppose to be the ordered pair of (0.5,-9.25). I've tried working this so much, I am now completely confused. I know that my parabola opens upward because of the 1 co-effient. I know that it is to be a minimum. I've tried going into where I choose to calcuate the minimum. Yet I am missing something. I have to get this, otherwise, I am not able to proceed to continue my class. This is all online.
Click here to see answer by jim_thompson5910(35256)

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