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

Tutors Answer Your Questions about Graphs (FREE)

Question 1071867: xy=8
y=1/2X-2
substitute or eliminate to isolate one variable
Click here to see answer by Boreal(15235)

Question 1071932: I need to find the average rate of change of g (x)= 3 ^x over the interval 0
Click here to see answer by ikleyn(52776)

Question 1071975: In 3y=4x+2 equation how can we easily choose the propriate value for x ? And how to find gradient ? How to plot it on graph?

Click here to see answer by josgarithmetic(39616)

Question 1071995:
Click here to see answer by Fombitz(32388)

Question 1071866: xy=8
y=1/2X-2
identify the nature of the equations
Click here to see answer by Fombitz(32388)

Question 1071716: What does this look like graphed?
Y is less than or equal to 300-x
Y is less than or equal to 363 7/11 - 15/11x
Click here to see answer by Fombitz(32388)

Question 1072108: Find the equation of the line that contains the point (-4, 7) and is parallel to the line 7x+4y=4. Write the line in slope-intercept form. Graph the lines.
How do I do this? I don't know how.
Click here to see answer by josgarithmetic(39616)

Question 1072180: y= -5x^2 +5
Find the x and y intercepts if any
Click here to see answer by math_helper(2461)

Question 1072181: For each graph below, state I) the slope as a fraction in lowest terms, ii) the y-intercept, and iii) the equation
Click here to see answer by Fombitz(32388)

Question 1072239: Use graphing to solve each system of equations graph each equation on thw same coirdinate planw and find the solution. x - y = -4 and x + y = 6
Click here to see answer by josgarithmetic(39616)

Question 1072303: the graph of f(x)=6
Click here to see answer by Fombitz(32388)

Question 1072322: y=-2log3 (x+3)
Click here to see answer by Fombitz(32388)

Question 1072221: the following table gives the number of games won and lost by the winning team of a baseball league for eight consecutive years, How do i find the percentage won, for the 1st year won 53 lost 31, 2nd year won 57 lost 33, 3rd won 60 lost 32, 4th 55 won 41 lost, 5th 51 won 42 lost, 6th won 63 lost 39, 7th won 65 lost 40, and 8th year won 60 lost 45. how do i find the percentage won for each year.
Click here to see answer by Boreal(15235)

Question 1072408: What is the slope of a line parallel and perpendicular to this line?
2�+3y=1
Click here to see answer by rothauserc(4718)

Question 1072408: What is the slope of a line parallel and perpendicular to this line?
2�+3y=1
Click here to see answer by Theo(13342)

Question 1072692: Each graph below shows a relationship between x and y. For each graph, determine whether x and y are proportional. If x and y are proportional, fill in the blank with a number.
Here is a screenshot of the graph below copy and paste the link please :)
Link ; http://prntscr.com/ejhgg2
thanks so much.

Click here to see answer by Boreal(15235)

Question 1072698: rewrite the following equations in y=form
4x + 2y = 12
5y = 2x + 15
Click here to see answer by Fombitz(32388)

Question 1072635: Sketch the graph and use it to solve the given inequality.
Graph f(x)=−x2+4 and find x where f(x)≥0.

Click here to see answer by Fombitz(32388)

Question 1072826: i need to find the ordered pairs of
y=0.8x+4

Click here to see answer by Alan3354(69443)

Question 1072852: 9x+15y=45
Click here to see answer by Fombitz(32388)

Question 1072853: how does y<-3 look on a graph?
my email address is ari.annaaaaaaa1@gmail.com
Click here to see answer by Fombitz(32388)

Question 1072940: What is the geometric mean of 4/5 and 180. Simplify

Click here to see answer by ikleyn(52776)

Question 1072948: X=0,y=0,x+y=5 and find area
Click here to see answer by Fombitz(32388)

Question 1072957: help me to sketch this graph, f(x)= 6/x
Click here to see answer by Fombitz(32388)

Question 1072957: help me to sketch this graph, f(x)= 6/x
Click here to see answer by KMST(5328)

Question 1072908: Hi, I'm working on a project for Algebra and I need help with this question, and if you could also give some examples, that would be great. Thanks!
Can two lines be drawn with the given intersection?
a. a point
b. a line
c. a region
d. no intersection
Click here to see answer by Fombitz(32388)

Question 1073016: Hi, I'm working on my Algebra assignment and I need help with this question.
Find the possible intersections for the graphs of more than two linear inequalities. Support each possibility with a diagram or an explanation.
Click here to see answer by Fombitz(32388)

Question 1073036: How would you work out the values for a table of values for y = 4/x?
Click here to see answer by Alan3354(69443)

Question 1073035: Y=2x+1 x=3
Click here to see answer by Alan3354(69443)

Question 1073035: Y=2x+1 x=3
Click here to see answer by josgarithmetic(39616)

Question 1073034: the lines y=3x+4 and y=2x+6 intersect at point m.
line n goes through point m and is parallel to the line y=1/2x+6
please find the equation of line n
thank you
Click here to see answer by josgarithmetic(39616)

Question 1073143: Graph the line by locating any two ordered pairs that satisfy the equation.
4x = 6
Click here to see answer by fractalier(6550)

Question 1073206: 5(2x-1)-3x=5x+9
Click here to see answer by rfer(16322)

Question 1073270: I have a table with shoe sizes and height in inches (10,70.5), (10.5, 71), (11,72), (9,68.5), (12,74), (8.5,67.5) I need to write an equation for a line. I figured out that the slope is 2. How do i write an equation for the line?
Is it y = mx+b?

Click here to see answer by rothauserc(4718)

Question 1073334: how do I plot 2x+3y=3 on a graph?
Click here to see answer by josgarithmetic(39616)

Question 1073334: how do I plot 2x+3y=3 on a graph?
Click here to see answer by ikleyn(52776)

Question 1073389: What is the slope of a line that is perpendicular to y= -3?
Click here to see answer by josgarithmetic(39616)

Question 1073399: A square OABC is drawn with vertices as shown. Find the equation of the circle with largest area that can be drawn inside the square.
Image in the link: http://prntscr.com/elntyz
Click here to see answer by josgarithmetic(39616)

Question 1073402: Find the distance between the points of intersection of the graphs of y = 2x2 � 4x+ 1 and 2x - y = - 21.
Click here to see answer by josgarithmetic(39616)

Question 1073576: Hello!
I am sorry if this problem is really long. This is a midterm homework problem and we never actually covered this material in depth, so i am a bit worried. The homework is worth 50 points. I attempted part of it but I really need help. There are three sections. The first section I started as well as the second.Thank you for your help !
There are three parts to this assignment.
PART 1
"You and your friend have decided to make custom charm bracelets for a charity crafts fair.
You and your friend can make either Small bracelets that yield a profit of 10 dollars each, or Large bracelets that bring in 15 dollars of profit each. It takes 8 minutes to design Small bracelets but only 6 minutes to design the Large bracelets. It also takes 8 minutes to construct a Small bracelet but does take longer - 12 minutes - to construct a Large bracelet. You will be doing the Design work, but only have just 168 minutes to spend. Your friend will be doing the Construction work, but he has only 240 minutes to spend."
For this part of the assignment, create a table that summarizes the information above. Your table should list both the small and large bracelet, the time needed to design and to construct each, and the maximum amount of time that can be spent on each activity. Use the variable X to represent the Small bracelets and Y to represent the Large bracelets."

For part one I started it but i am unsure if i categorized it correctly. I did it basically like thiS but in box form in a Word document.

RESOURCES- NEEDED FOR A SMALL BRACELET (X)- FOR LARGE(Y)- AVAILABLE
DESIGN - 8MIN - 6 MIN - 168MIN
CONSTRUCT- 8MIN - 12 MIN - 140MIN

PART 2 (20 PTS)
"Using the example in part 1 above and using the same document you used to create your data table, perform the following steps, showing all your work including equations, calculations and graphs:
Identify the variables, the constraints, and write the inequalities that can be derived from the information above
Graph the set of feasible solutions
Identify the coordinates of all four corner points"

For this section I came up with this

Define
X= # of small bracelets
Y= # of large bracelets
Four inequalities
x ≥ 0
y ≥ 0
8x +6y ≤ 168
8x +12y ≤ 240
Test the inequality with (1,1)
8(1) +6(1) ≤ 168 14 ≤ 168
8(1) +12(1) ≤ 240 20 ≤ 240
Corner points
(x, y)= (0,20),(0,0),(21,0),(12,12)

P(x,y) = 10 x + 15y
P (0,0) = 0
P (0,20) = 300
P (21,0) = 210
P (12,12) = 300
Maximum profit is 300$

PART 3
"In this part of the assignment you will use the information gathered in parts 1 and 2 to determine which combination of Small and Large bracelets will yield the greatest profits. Using the same document as in parts 1 and 2 above, perform the following steps:
-Write the Profit equation for this scenario
-Using the Profit equation, calculate the profit of using the sets of values -of X and Y calculated above. Show your results in tabular form
-Identify the maximum profit possible for the scenario stated here

Click here to see answer by KMST(5328)

Question 1073797: 3y-4x=9,-3y-2x=9
Click here to see answer by ikleyn(52776)

Question 1074000: Ben bowled 149 and 206 in his first two games. What must he bowl in his third game to have an average of at least 200?
Click here to see answer by josgarithmetic(39616)

Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295, 2296..2340, 2341..2385, 2386..2430, 2431..2475, 2476..2520, 2521..2565, 2566..2610, 2611..2655, 2656..2700, 2701..2745, 2746..2790, 2791..2835, 2836..2880, 2881..2925, 2926..2970, 2971..3015, 3016..3060, 3061..3105, 3106..3150, 3151..3195, 3196..3240, 3241..3285, 3286..3330, 3331..3375, 3376..3420, 3421..3465, 3466..3510, 3511..3555, 3556..3600, 3601..3645, 3646..3690, 3691..3735, 3736..3780, 3781..3825, 3826..3870, 3871..3915, 3916..3960, 3961..4005, 4006..4050, 4051..4095, 4096..4140, 4141..4185, 4186..4230, 4231..4275, 4276..4320, 4321..4365, 4366..4410, 4411..4455, 4456..4500, 4501..4545, 4546..4590, 4591..4635, 4636..4680, 4681..4725, 4726..4770, 4771..4815, 4816..4860, 4861..4905, 4906..4950, 4951..4995, 4996..5040, 5041..5085, 5086..5130, 5131..5175, 5176..5220, 5221..5265, 5266..5310, 5311..5355, 5356..5400, 5401..5445, 5446..5490, 5491..5535, 5536..5580, 5581..5625, 5626..5670, 5671..5715, 5716..5760, 5761..5805, 5806..5850, 5851..5895, 5896..5940, 5941..5985, 5986..6030, 6031..6075, 6076..6120, 6121..6165, 6166..6210, 6211..6255, 6256..6300, 6301..6345, 6346..6390, 6391..6435, 6436..6480, 6481..6525, 6526..6570, 6571..6615, 6616..6660, 6661..6705, 6706..6750, 6751..6795, 6796..6840, 6841..6885, 6886..6930, 6931..6975, 6976..7020, 7021..7065, 7066..7110, 7111..7155, 7156..7200, 7201..7245, 7246..7290, 7291..7335, 7336..7380, 7381..7425, 7426..7470, 7471..7515, 7516..7560, 7561..7605, 7606..7650, 7651..7695, 7696..7740, 7741..7785, 7786..7830, 7831..7875, 7876..7920, 7921..7965, 7966..8010, 8011..8055, 8056..8100, 8101..8145, 8146..8190, 8191..8235, 8236..8280, 8281..8325, 8326..8370, 8371..8415, 8416..8460, 8461..8505, 8506..8550, 8551..8595, 8596..8640, 8641..8685, 8686..8730, 8731..8775, 8776..8820, 8821..8865, 8866..8910, 8911..8955, 8956..9000, 9001..9045, 9046..9090, 9091..9135, 9136..9180, 9181..9225, 9226..9270, 9271..9315, 9316..9360, 9361..9405, 9406..9450, 9451..9495, 9496..9540, 9541..9585, 9586..9630, 9631..9675, 9676..9720, 9721..9765, 9766..9810, 9811..9855, 9856..9900, 9901..9945, 9946..9990, 9991..10035, 10036..10080, 10081..10125, 10126..10170, 10171..10215, 10216..10260, 10261..10305, 10306..10350, 10351..10395, 10396..10440, 10441..10485, 10486..10530, 10531..10575, 10576..10620, 10621..10665, 10666..10710, 10711..10755, 10756..10800, 10801..10845, 10846..10890, 10891..10935, 10936..10980, 10981..11025, 11026..11070, 11071..11115, 11116..11160, 11161..11205, 11206..11250, 11251..11295, 11296..11340, 11341..11385, 11386..11430, 11431..11475, 11476..11520, 11521..11565, 11566..11610, 11611..11655, 11656..11700, 11701..11745, 11746..11790, 11791..11835, 11836..11880, 11881..11925, 11926..11970, 11971..12015, 12016..12060, 12061..12105, 12106..12150, 12151..12195, 12196..12240, 12241..12285, 12286..12330, 12331..12375, 12376..12420, 12421..12465, 12466..12510, 12511..12555, 12556..12600, 12601..12645, 12646..12690, 12691..12735, 12736..12780, 12781..12825, 12826..12870, 12871..12915, 12916..12960, 12961..13005, 13006..13050, 13051..13095, 13096..13140, 13141..13185, 13186..13230, 13231..13275, 13276..13320, 13321..13365, 13366..13410, 13411..13455, 13456..13500, 13501..13545, 13546..13590, 13591..13635, 13636..13680, 13681..13725, 13726..13770, 13771..13815, 13816..13860, 13861..13905, 13906..13950, 13951..13995, 13996..14040, 14041..14085, 14086..14130, 14131..14175, 14176..14220, 14221..14265, 14266..14310, 14311..14355, 14356..14400, 14401..14445, 14446..14490, 14491..14535, 14536..14580, 14581..14625, 14626..14670, 14671..14715, 14716..14760, 14761..14805, 14806..14850, 14851..14895, 14896..14940, 14941..14985, 14986..15030, 15031..15075, 15076..15120, 15121..15165, 15166..15210, 15211..15255, 15256..15300, 15301..15345, 15346..15390, 15391..15435, 15436..15480, 15481..15525, 15526..15570, 15571..15615, 15616..15660, 15661..15705, 15706..15750, 15751..15795, 15796..15840, 15841..15885, 15886..15930, 15931..15975, 15976..16020, 16021..16065, 16066..16110, 16111..16155, 16156..16200, 16201..16245, 16246..16290, 16291..16335, 16336..16380, 16381..16425, 16426..16470, 16471..16515, 16516..16560, 16561..16605, 16606..16650, 16651..16695, 16696..16740, 16741..16785, 16786..16830, 16831..16875, 16876..16920, 16921..16965, 16966..17010, 17011..17055, 17056..17100, 17101..17145, 17146..17190, 17191..17235, 17236..17280, 17281..17325, 17326..17370, 17371..17415, 17416..17460, 17461..17505, 17506..17550, 17551..17595, 17596..17640, 17641..17685, 17686..17730, 17731..17775, 17776..17820, 17821..17865, 17866..17910, 17911..17955, 17956..18000, 18001..18045, 18046..18090, 18091..18135, 18136..18180, 18181..18225, 18226..18270, 18271..18315, 18316..18360, 18361..18405, 18406..18450, 18451..18495, 18496..18540, 18541..18585, 18586..18630, 18631..18675, 18676..18720, 18721..18765, 18766..18810, 18811..18855, 18856..18900, 18901..18945, 18946..18990, 18991..19035, 19036..19080, 19081..19125, 19126..19170, 19171..19215, 19216..19260, 19261..19305, 19306..19350, 19351..19395, 19396..19440, 19441..19485, 19486..19530, 19531..19575, 19576..19620, 19621..19665, 19666..19710, 19711..19755, 19756..19800, 19801..19845, 19846..19890, 19891..19935, 19936..19980, 19981..20025, 20026..20070, 20071..20115, 20116..20160, 20161..20205, 20206..20250, 20251..20295, 20296..20340, 20341..20385, 20386..20430, 20431..20475, 20476..20520, 20521..20565, 20566..20610, 20611..20655, 20656..20700, 20701..20745, 20746..20790, 20791..20835, 20836..20880, 20881..20925, 20926..20970, 20971..21015, 21016..21060, 21061..21105, 21106..21150, 21151..21195, 21196..21240, 21241..21285, 21286..21330, 21331..21375, 21376..21420, 21421..21465, 21466..21510, 21511..21555, 21556..21600, 21601..21645, 21646..21690, 21691..21735, 21736..21780, 21781..21825, 21826..21870, 21871..21915, 21916..21960, 21961..22005, 22006..22050, 22051..22095, 22096..22140, 22141..22185, 22186..22230, 22231..22275, 22276..22320, 22321..22365, 22366..22410, 22411..22455, 22456..22500, 22501..22545, 22546..22590, 22591..22635, 22636..22680, 22681..22725, 22726..22770, 22771..22815, 22816..22860, 22861..22905, 22906..22950, 22951..22995, 22996..23040, 23041..23085, 23086..23130, 23131..23175, 23176..23220, 23221..23265, 23266..23310, 23311..23355, 23356..23400, 23401..23445, 23446..23490, 23491..23535, 23536..23580, 23581..23625, 23626..23670, 23671..23715, 23716..23760, 23761..23805, 23806..23850, 23851..23895, 23896..23940, 23941..23985, 23986..24030, 24031..24075, 24076..24120, 24121..24165, 24166..24210, 24211..24255, 24256..24300, 24301..24345, 24346..24390, 24391..24435, 24436..24480, 24481..24525, 24526..24570, 24571..24615, 24616..24660, 24661..24705, 24706..24750, 24751..24795, 24796..24840, 24841..24885, 24886..24930, 24931..24975