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

Tutors Answer Your Questions about Graphs (FREE)

Question 87780: y = 2x
Click here to see answer by madhujiithcharu@yahoo.co.in(28)

Question 87823: I really need help on this one because I am really bad at graphing.
The problem goes like this: Solve and graph the solution set--
a) |4q-18|_>0
b) 12-|7-2m|= 9
c) |r+5|+3_<3
PLEASE HELP ME!!!!!!!!!!!!!
Click here to see answer by Edwin McCravy(20054)

Question 87879: This is my first time on this site and the problem looks easy but I am really
having the blues. Graph y=3x=4 and y=-1/3x-4 determine whether the two lines
are parallel,perpendicular ot neither.The teacher taught it this way but I am
still having a hard time with it.

Click here to see answer by Earlsdon(6294)

Question 87833: I need help with this: graph the following functions separately:
f(x)=5^x
f(x)=-2+e^x
Click here to see answer by jim_thompson5910(35256)

Question 87899: find the slope and y intercept y= -4x - 9
Click here to see answer by Earlsdon(6294)

Question 87898: f(x) = -x -2 I'm not sure where to start
Click here to see answer by Earlsdon(6294)

Question 87897: 3x -y =-7
x + y = -9
ok I think I need to rewrite the equation with y= 3(x-x)-7
Click here to see answer by rapaljer(4671)

Question 87912: |k|<3
Click here to see answer by rapaljer(4671)

Question 87966: Graph the solution set of each of the following inequalities.
18. x > 4

Click here to see answer by tutorcecilia(2152)

Question 88163: I am not good with graphing can you help
Solve the following system of linear inequalities by graphing.
x � 2y greater than and equal to 4
x less than and equal to 4
thanks

Click here to see answer by jim_thompson5910(35256)

Question 88268: write the point-slope form of a line where m is the slope and (x1,y1) is a point on the line.
Click here to see answer by stanbon(75887)

Question 88290: I have two problems i am unable to do can you help.
thanks
Problem 1 Graph the inequality.
y >=3x
Problem 2
Graph the inequality.
2x + 3y > 6

Click here to see answer by stanbon(75887)

Question 88346: The sum of two numbers is 58. The second is 1 more than 2 times the first what are the two numbvers ok x+y= 58 = 2(x+1) +2y = 58= 2x + 2 +2y = 58 -2= 56 then 2x/2 = 56/2 x= 28 then 28 -56= 28 I 'm lost
Click here to see answer by rossiv53(27)

Question 88343: word problem delimma tickets for a play cost $12 for an adult and $8 for an child If 130 tickets were sold and the total receipts were 1160 how many of each ticket weree sold. Ok if x= the adult tickets and c= the child tickets do I go x+ c = 130 and then go 12x + 8c==1160 then divide both sidec by 8 to get the child ticket
Click here to see answer by rossiv53(27)

Question 88378: I need help could you show me how to do this problem
Graph the solution set of x > 2
Click here to see answer by rapaljer(4671)

Question 88344: graph f(x)= -x-2 do I first go like (0,-2) and (-2,0) then graph
Click here to see answer by rapaljer(4671)

Question 88481: I m trying to solve the linear inequalities by graphing
3x+4y <=12
x+3y<=6
x>=0
y>=0
Click here to see answer by jim_thompson5910(35256)

Question 88515: Solve for the following system of linear inequalities by graphing. x+2y<3 and 2x-3y<6
Click here to see answer by jim_thompson5910(35256)

Question 88181: Graph the line using three points
y=1/2x-1
Click here to see answer by elima(1433)

Question 88674: Graph the function and label as exponential growth or decay. y=3x3to the xth power. I have no idea what they're talking about. It's an algebra review part of our summer assignment for Pre AP Geometry. Help!!! Thanks! :)
Click here to see answer by cincinnatus(5)

Question 88747: I have figured the slope as (-3/4) the y intercept (0,8) as being (3/4x)+8 but I am not sure how to graph this one. Can you help please? Thanks!
Click here to see answer by jim_thompson5910(35256)

Question 88789: Sketch the graph of the hyperbola y^2/25- x^2/4= 1. Draw the fundamental rectangle. Find the equations of the asymptotes and label the asymptotes on your graph.
Click here to see answer by venugopalramana(3286)

Question 88843: I am trying to help my daughter solve the following equation and can't seem to get the right answer, plus it has been 24 years since I have worked algebra. Could you please help me find the solution:
Graph 6x-42=16y

Click here to see answer by jim_thompson5910(35256)

Question 88867: I am not sure how to graph this problem
y=-5x-6
Click here to see answer by jim_thompson5910(35256)

Question 88885: I need help with the following problems. All of these problems ar inside of the curly brackets.. example { }
Solve by any convenient method :
4x + 12y = 24
2x + 6y = 12

Solve by any convenient method :
8x + 4y =7
x = 2-2y

Solve by Elimination :
2x -3y =-1
3x + y +15

Solve by Substitution :
3x + 8y = 7
x- 4y =9
Click here to see answer by stanbon(75887)

Question 88884: I need to know how to find the slope x-intercept and y-intercept.
Click here to see answer by checkley75(3666)

Question 88889: I have solved these but wanted someone check them. Is there any way you can solve these and graph them so that I can see what they look like compared to my graph since I am unsure how to graph on this site.
It says to solve graphically. State the colution.
#1 #2
2x-y=-6 -2x+y=-4
x+y=3 y-2x=3
Click here to see answer by jim_thompson5910(35256)

Question 88899: Please help me I having trouble with this problem.
Complete the ordered pairs so that each is a solution for the given equations.
3x+4y=12 (0, ),(3/4),( ,0),(8/3)
Click here to see answer by malakumar_kos@yahoo.com(315)

Question 88910: I could use some help thank you
Solve and graph the solution set. 4x + 8 >= 3x + 16
Click here to see answer by bucky(2189)

Question 88912: How do I do this?
List and verify two intercept points (ordered pairs) that are solutions for the equation 5x � 4y = 20?
Thank you so much
Click here to see answer by bucky(2189)

Question 88957: My teacher says what I am doing is wrong please help me with these to.
For each equation in exercises 26 and 28, identify the axis of symmetry, create a suitable
table of values, and sketch the graph (including the axis of symmetry).
26. x^2-5x+3
28. x^2+6x-2
Click here to see answer by scott8148(6628)

Question 88804: Complete the square and write the given equation in the standard form for the equation of a circle. then give the center and radius of the circle and sketch the graph.
x^2-6x+y^2+2y=6
Click here to see answer by stanbon(75887)

Question 89038: Word problems are hard for me. Please help with this question:
Ronald wants to sell his car through a broker who charges a commission of 10% of the selling price. Ronald still owes $11,025 ON THE CAR. Ronald must get enough to at least pay of the loan. What is the rance of the selling price.
I had 11025
Click here to see answer by scott8148(6628)

Question 89039: what are the steps for graphing 2x-y=1=0
Click here to see answer by chitra(359)

Question 89147: This is from a worksheet.
Find the y-intercept of the graph of the equation 5x + 3y -15 = 0. State your answer as an ordered pair.
I do not understand how to do this.
Click here to see answer by bucky(2189)

Question 89188: The length of the base of a triangle is eight times the length of its altitude. Express the area (A) of the triangle as a function of its altitude x.

x=h
b=8x
Click here to see answer by stanbon(75887)

Question 89183: How can you tell from the equation of a parabola whether the graph has a maximum or a minimum value at its vertex?

Click here to see answer by Earlsdon(6294)

Question 89183: How can you tell from the equation of a parabola whether the graph has a maximum or a minimum value at its vertex?

Click here to see answer by jim_thompson5910(35256)

Question 89200: Describe the steps you would follow in graphing x+2y<=2. Include in your answer whether you use a solid or broken line and where you shade, above or below the line.
This is from a worksheet.
Click here to see answer by Nate(3500)

Question 89442: Explain how the graph of y = f(x + h) can be obtained from the graph of y = f(x) when h > 0 , and also when h < 0.
Click here to see answer by Edwin McCravy(20054)

Question 89441: Under what conditions is the graph of a function y = f(x)said to be symmetric through the origin?
Click here to see answer by stanbon(75887)

Question 89510: Suppose you wanted to design a parabolic arch (a parabola opening downward) as a trellis in your garden. This would mean that the first term of the quadratic equation, the term with the variable raised to the second power, would have to be negative. An engineering friend suggests that the following quadratic function might be aesthetically pleasing.
h(x) = -5x2/64 + 4
This function gives the height of the arch (in feet) at any horizontal distance x (in feet) from the centerline of the arch. The trellis (parabola) could be supported by vertical posts at intervals across the inside of the arch. These posts could be placed at 1, 2, 3, 4, 5, 6, and 7 feet on both sides of the centerline (the axis of the parabola). Therefore, for any distance (x-value) the height of a post supporting the arch at that point could be determined from the above function.
1. When drawing the graph of this parabola, where is its axis located in the coordinate plane?
2. Where would the arch touch the ground? (i.e. How far from the axis of the parabola?)

Suppose you wanted to design a parabolic arch (a parabola opening downward) as a trellis in your garden. This would mean that the first term of the quadratic equation, the term with the variable raised to the second power, would have to be negative. An engineering friend suggests that the following quadratic function might be aesthetically pleasing.
h(x) = -5x^2/64 + 4
This function gives the height of the arch (in feet) at any horizontal distance x (in feet) from the centerline of the arch. The trellis (parabola) could be supported by vertical posts at intervals across the inside of the arch. These posts could be placed at 1, 2, 3, 4, 5, 6, and 7 feet on both sides of the centerline (the axis of the parabola). Therefore, for any distance (x-value) the height of a post supporting the arch at that point could be determined from the above function.
1. When drawing the graph of this parabola, where is its axis located in the coordinate plane? Please show the graph
2. Where would the arch touch the ground? (i.e. How far from the axis of the parabola?)
3. What is the maximum height of the arch?
4. What are the lengths of the posts at the distances of 1, 2, 3, . . . feet from the axis?
a. 1 foot from axis
b. 2 feet from axis
c. 3 feet from axis
d. 4 feet from axis
e. 5 feet from axis
f. 6 feet from axis
g. 7 feet from axis a. = b. = c. = d. = e. = f. = g. =

I have submitted this problem several times and now I think I figured out what I was doing wrong please help me.
Click here to see answer by scott8148(6628)

Question 89497: If the quadratic function f(x) = 2x2 - 4x + 6 is graphed, the range has:
A. a maximum value
B. a minimum value
C. no maximum or minimum value
D. many maximum and minimum values

Click here to see answer by scott8148(6628)

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