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

Tutors Answer Your Questions about Graphs (FREE)

Question 109669: Solve this system of linear equations by graphing.
2x - y = 4
2x - y = 6

Click here to see answer by stanbon(57307)

Question 109669: Solve this system of linear equations by graphing.
2x - y = 4
2x - y = 6

Click here to see answer by checkley71(8403)

Question 109673: Solve this system of linear equations by graphing.
x - 2y = 8
3x - 2y = 12
Click here to see answer by elima(1433)

Question 109674: Solve this system of linear equations by graphing.
3x - 6y = 9
x - 2y = 3
Click here to see answer by elima(1433)

Question 109759: Solve this system of linear equations by graphing.
x - 2y = 8
3x - 2y = 12
Click here to see answer by chitra(359)

Question 109763: Solve and graph.
A small firm produces AM and AM/FM car radios. The AM radios take 15 hours to produce, and the AM/FM radios take 20 hours. The number of production hours is limited to 300 hours per week. The plant’s capacity is limited to a total of 18 radios per week, and existing orders require that at least 4 AM radios and at least 3 AM/FM radios be produced a week. Write a system of inequalities representing this situation. Then draw a graph of the feasible region given these conditions, in which x is the number of AM radios and y the number of AM/FM radios.
Click here to see answer by ankor@dixie-net.com(15649)

Question 109872: Graph f(x) = –2x + 4.
Click here to see answer by MathLover1(6627)

Question 109871: Solve the system by graphing.
3x – y = 1
3x – y = 2
Click here to see answer by jim_thompson5910(28579)

Question 109871: Solve the system by graphing.
3x – y = 1
3x – y = 2
Click here to see answer by MathLover1(6627)

Question 109888: solve the system by graphing
x+y=3
x+y= -1

My question is do I just pick a number to plug in for x & y or do I use the 3 and 1 somehow?
Click here to see answer by tutorcecilia(2152)

Question 109939: find the line perpendicular to the lines:
y=-4x+2
y=x-3
Click here to see answer by checkley71(8403)

Question 110004: y=2x+0
Click here to see answer by tutorcecilia(2152)

Question 110038: Identify the axis of symmetry, create a suitable table of values, then sketch the graph (including the axis of symmetry).
y=-x^2+3x-3
Wow, do I really need help. Thank you!
Click here to see answer by stanbon(57307)

Question 110106: Please help.
Graph the following equation by first solving for y.
2x - 3y = 12
Thanks
JMS
Click here to see answer by MathLover1(6627)

Question 110005: find the length of a radius of the circle x^2+y^2-4x-6y-5=0
Click here to see answer by elima(1433)

Question 110005: find the length of a radius of the circle x^2+y^2-4x-6y-5=0
Click here to see answer by bucky(2189)

Question 110114: graph by first solving for y
x-3y=9

x-9=3y divide both sides by 3
x-3=y or would it be y=1/3x
Am I on the right track and how do you graph a fraction?
Click here to see answer by Edwin McCravy(8908)

Question 110111: solve and graph the solution set 3(x-4)>7x-9

3x-12>7x-9 then add 12 to both sides
3x > 7x -3 then subtract -7x from both sides
-4x > -3

x> 3/4
Double checking my work because I dont know if I did this right and if so how do you graph a fraction.

Click here to see answer by stanbon(57307)

Question 110289: graph f(x)=-3x-2
Click here to see answer by bucky(2189)

Question 110293: solve the system by graphing
x+y=4
-x+y=2
Click here to see answer by praseenakos@yahoo.com(507)

Question 110282: solve the system by graphing
x+y=3
x+y=-1
Click here to see answer by praseenakos@yahoo.com(507)

Question 110296: I'm in indiana useing the college text book intro to algebra, eight edition, by lial hornsby mcginnis, now the one i'm stuck on is the following
Decide whether or not the given ordered pair is a solution of the given system. ( Solving Systems of Linear Equations by Graphing)
My instructor sucks!!! that swhy i need help with the following
( 2, -3 )
x + y = -1
2x + 5y = 19
?
?
totally lost please help!!!
also
solve each system of equations by graphing. ( granted my text shows the graph and i got graph paper not sure how exactly you can help with this) If the two equations produce parallel lines write no solution. If the two equations produce the same line write infinite number of solution......
x - y = 2
x + y = 6

then here would be the graph
thanks
my names leona
Click here to see answer by malakumar_kos@yahoo.com(315)

Question 110294: graph the inequality
y> or = 3x
Click here to see answer by stanbon(57307)

Question 110290: solve the following system of linear inequalities by graphing.
3x-y<2
x+y>2
Click here to see answer by jim_thompson5910(28579)

Question 110431: Graph this equation.
2x+y=5
Click here to see answer by jim_thompson5910(28579)

Question 110458: what equation has a slope of 2 and a y-intercept of -5
Click here to see answer by checkley71(8403)

Question 110458: what equation has a slope of 2 and a y-intercept of -5
Click here to see answer by Edwin McCravy(8908)

Question 110462: the following function f(x)describes ashley's distance from home over time.
find f(x) what x=2 What does this value represent?
the graph distance (miles) 0,1,2,3,4,5,6,7,8 =y axis and 0,1,2,3,4,5,6,7,8=x axis need help
Click here to see answer by stanbon(57307)

Question 110473: Can you please help me solve this equation? I know the standard form formula is but I don't know how to get the equation into the standard form formula. Any help would be sooo great thanks!!
Write each equation in standard form
y-1=2(x+1)
Click here to see answer by ptaylor(2048)

Question 110543: The difference of two numbers is 48. The second is 8 less than 5 times the first. What are the two numbers?
Click here to see answer by wgunther(43)

Question 110569: x-intercept: -2
y-intercept: 5
Click here to see answer by checkley71(8403)

Question 110548: solve the system by substitution.
x + y = 12
y = 2x
Click here to see answer by HyperBrain(694)

Question 110546: solve the system by addition or substitution.
3x + 6y = 0
x = 2/3
Click here to see answer by HyperBrain(694)

Question 110578: i dont get direct variation it says: Write the equation of direct variation that includes the given point. The given point is (3,1) how do i solve this?
Click here to see answer by scott8148(6628)

Question 110607: Alright I cannot figure out this one- I know the answer is 81 times as great but how do I get that answer:
Thank You
According to Newton's Law of Gravation, the force of attraction between two objects varies jointly as their masses and inversely as the square of the distance between them. How does the force change if each of their masses is tripled but the distance between them is cut to one-third?
Click here to see answer by scott8148(6628)

Question 110512: Solve the system by graphing. Show your graph.
x + y = 3
x + y = -1
Click here to see answer by praseenakos@yahoo.com(507)

Question 110673: Graph f(x) = –2x + 4.
Click here to see answer by MathLover1(6627)

Question 110542: Sally bought three chocolate bars and a pack of gum and paid $1.75. Jake bought two chocolate bars and four packs of gum and paid $2.00. Find the cost of a chocolate bar and the cost of a pack of gum
Click here to see answer by Fombitz(13828)

Question 110723: Graph 3x-y=4
Click here to see answer by jim_thompson5910(28579)

Question 110722: Graph 2x-5y=10
Click here to see answer by jim_thompson5910(28579)

Question 110721: Graph y=1/2x-3
Click here to see answer by jim_thompson5910(28579)

Question 110719: Find the orderd pair solution of y=-2x+1 that corresponds to x=-3.

Need help solving this problem please.
Click here to see answer by scott8148(6628)

Question 110563: x-y=10,(5,-5)
Click here to see answer by jim_thompson5910(28579)

Question 110601: solve and graph the solution set.
3(x-4)>7x-9
Click here to see answer by jim_thompson5910(28579)

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