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

Tutors Answer Your Questions about Graphs (FREE)

Question 660787: I really need help solving this problem:
Wilson's sand and gravel will deliver 12yd^3 of gravel for $240 and 30yd^3 for $528. What is the average rate of change of the cost as the number of cubic yards varies from 12 to 30?
I would greatly appreciate it if someone helps me out. I have no idea what to do.
Thank you so much!!
Click here to see answer by josmiceli(19441)

Question 660836: I really need help with this problem:
Graph and give the domain and range.
I figured out the domain and range.
Domain- [-2,positive infinity)
Range- [0, positive infinity)
I just don't know how to graph it.
I would greatly appreciate it if someone could help me out.
Thank you.

Click here to see answer by MathLover1(20849)

Question 660887: find 3 different ordered pairs that are solutions of the equation, x = 2.
Click here to see answer by stanbon(75887)

Question 660887: find 3 different ordered pairs that are solutions of the equation, x = 2.
Click here to see answer by math-vortex(648)

Question 660891: write an equation for the line that passes through (-2,3) and is parallel to the line whos equation is 3x+2y=6
Click here to see answer by stanbon(75887)

Question 660938: I have a problem that I need help with, I also need the steps and the x & y points to graph it, here is the problem
(4.9)t2=D
and question I have to answer with the problem is: a body fell out a window from 155 meters up, how many seconds did it take the person to land.
I hope you can help me
Thank You
Click here to see answer by josmiceli(19441)

Question 660990: -4x+7y=-2
x=-y-5
Click here to see answer by jim_thompson5910(35256)

Question 661052: I have a problem where on a graph, x= -5, -4, -3, -2 and y= 2, 0, -2, -4. How do I write an equation for y='s when the difference between y & x is not constant?
Click here to see answer by ewatrrr(24785)

Question 661161: -6<6x<24
Click here to see answer by Jazleen(5)

Question 658776: Rate 1 $42 plus $.12 mile
Rate 2 $84 plus .06 mile
How many miles must one drive to pay less than Rate 2

how do I work this problem
Click here to see answer by Jazleen(5)

Question 661183: 4x+1-1>-8
Click here to see answer by Jazleen(5)

Question 661342: Find an equation perpendicular to x=7 and passing through (4,-3)
I seek the answer in standard form.
BTW, the steps would be very helpful.
I am having a hard time without my local tutor!)
Click here to see answer by jim_thompson5910(35256)

Question 661441: write the slope intercept form of the equation line satisfying the given conditions
through (5,8) slope -2
Click here to see answer by MathLover1(20849)

Question 661363: Could you please help my son? You want to solve an inequality containing the expression -3(2x-3). The next line in your solution would rewrite this expression as ? He doesnt have the book just a photo copy. Is there a way you can help me explain this to him. Thank you
Click here to see answer by ankor@dixie-net.com(22740)

Question 661552: Write an equation of the line parallel to the line y = 3x + 2 that passes through (2,0). I already know that the slope of y = 3x + 2 is 3/1, but I really need help with the rest of this. Thanks!
Click here to see answer by lwsshak3(11628)

Question 661575: Graph the equation
y=2x+5
Click here to see answer by jim_thompson5910(35256)

Question 661646: 3x-y=9
Graph the function, Briefly explain how you graphed the function.
Click here to see answer by MathLover1(20849)

Question 661646: 3x-y=9
Graph the function, Briefly explain how you graphed the function.
Click here to see answer by josmiceli(19441)

Question 661680: Write the equation in slope-intercept form. What are the slope and y-intercept?
�2x � 11y = 5
(1 point)y = x + ; slope: ; y-intercept:
y = x + ; slope: ; y-intercept:
y = x � ; slope: ; y-intercept: �
y = �x �; slope: �; y-intercept: �
Click here to see answer by lynnlo(4176)

Question 661803: i need help solving this: ((( 8/(x+3)>1/(x+3) )))
Click here to see answer by stanbon(75887)

Question 661884: How to graph an this equation y=4
Click here to see answer by Alan3354(69443)

Question 661925: Find the slope and y intercept for the equation
x+15y=1
Click here to see answer by ReadingBoosters(3246)

Question 662039: Find the center and radius of the circle given by the equation
x^2+y^2+4x+4y−28=0
Click here to see answer by stanbon(75887)

Question 661840: 4X+6+3=17 multi step equations
Click here to see answer by ReadingBoosters(3246)

Question 662146: Need the rule (slope intercept equation) for the following points (1,1), (3,2), (5,5), (7,4)
Also how do you determine the rule given the above points?
Click here to see answer by ewatrrr(24785)

Question 154496: Find the value of b so that the graph of bx+5y=8 and has a slope of 4.
Click here to see answer by kevwill(135)

Question 662344: Please help me figure out how to graph x<_ 0. Or x is less than or equal to 0
Click here to see answer by sravanik2005(14)

Question 662344: Please help me figure out how to graph x<_ 0. Or x is less than or equal to 0
Click here to see answer by MathLover1(20849)

Question 662250: -2/5x - 9 < 9/10. PLease show work
thats negative 2 over 5 and 9 over 10.
Click here to see answer by ReadingBoosters(3246)

Question 662252: q+12-2(q-22)>0
Please show work
Thank you
Click here to see answer by ReadingBoosters(3246)

Question 662440: The intensity of radiation, R, from certain radioactive materials at a particular time, t, is thought to follow the law .

In an experiment to test this, the following values were obtained;
R - 58 43.5 26.5 14.5 10 (this is supposed to be a table)
t - 1.5 2 3 5 7
a) Show the assumption was correct, utilising your graphical and mathematical knowledge [Please use the correct type of graph paper]

b) Find values for k and n using your graph, thus state the equation in full.

Totally stuck on this question, i know i am supposed to end up with a straight line graph but cant get there, any help would be much appriciated.

Steve
Click here to see answer by ewatrrr(24785)

Question 662633: Determine the quardratic function f whose graph given, the vertex is (3,-4) and (2,-1)
Click here to see answer by lwsshak3(11628)

Question 662737: How do you find the slope of the line in a given graph.
Click here to see answer by Alan3354(69443)

Question 662814: 6x+3 ≥ 2(5x+4)-3
Solve the inequality and graph. Help?!
Click here to see answer by MathLover1(20849)

Question 662852: Complete the ordered pair so that it is a solution to the equation
5x+y=3
Click here to see answer by ReadingBoosters(3246)

Question 663378: 2k+4+1+12k=11(k-10)-10(k-5)
Click here to see answer by ReadingBoosters(3246)

Question 663421: How do you graph Y= -3X - 1
Click here to see answer by MathLover1(20849)

Question 663608: At what positive point do x=y/2+6 and x=y^2 intersect?
Click here to see answer by mananth(16946)

Question 663704: find the equation of theline passing through the point (-1,-4) that is parallel to the line -9+5y=6.
I dont know whatto do with the equation without an x to make it into slope intercept form
Click here to see answer by ewatrrr(24785)

Question 663715: graph 4x+18=-2x and find the slope, x and y intercepts
Click here to see answer by ewatrrr(24785)

Question 663717: how would you graph -4x+y=-12
Click here to see answer by ReadingBoosters(3246)

Question 663796: Find the value of y if the line through the points (2,y) and (4,6) has slope m=-2
Click here to see answer by stanbon(75887)

Question 663858: Hello out there.
I always have trouble with graphs, slopes, equations etc..
I am in need of help working through graphing a line for the equation y=-3x-2.
Click here to see answer by vleith(2983)

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