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

Tutors Answer Your Questions about Graphs (FREE)

Question 1131082: graph x=5y

Click here to see answer by MathLover1(20849)

Question 1131315: Plot the points: (-1/3,-1/3),(-1/6,-1/2)

Click here to see answer by Rainbow101(2)

Question 1131315: Plot the points: (-1/3,-1/3),(-1/6,-1/2)

Click here to see answer by MathLover1(20849)

Question 1131430: I have been asked to use a graphing calculator to approximate the location of the local maximum on the graph of y=x^3+12x^2-105x-3. values must be correct to the nearest hundredth. I feel like I am doing something wrong. I have a TI-84 Plus C Silver Edition calculator. I've tried to zoom in and I can't quite see the bottom nor top of the graph. It makes it hard to satisfy the question, because I can't see it. I've never done something like this before, so it's...frustrating.
Click here to see answer by josgarithmetic(39617)

Question 1131448: y = 5x - 10
Click here to see answer by MathLover1(20849)

Question 1131487: Find the solution to the system of inequalities by graphing and shading.
Y greater than equal to -2
Y less than equal to 2x+8
Click here to see answer by MathLover1(20849)

Question 1131573: What is the range for the piece wise function of 2x+4 where x ≥ 1 and
-x^2 where -3 ≤ x < 1?
I found that the domain is [-3,1], and points on the graph are (-3,-9),(-2,-4),(0,0),(1,6), and (2,8). However, because one of the pieces is quadratic, the -x^2
part of the function curves downward at 1 with an open circle at (1,-1).
I am unsure whether the range should be [-9,-1)∪[6,∞) or [-9,0]∪[6,∞).
Click here to see answer by stanbon(75887)

Question 1131579: How do I transform the equation y=√x to shift left 4 units, down 3 units, and reflect over the x-axis?
I tried to do this and got f(x)= -√(x+4) -3 but the answer key I have says it is f(x)=√(4-x) -3. Can you explain what I did wrong?
Click here to see answer by Theo(13342)

Question 1131665: I need help with rotation
Click here to see answer by Alan3354(69443)

Question 1131705: is there a solution for y=x^+2 x+7
Click here to see answer by rothauserc(4718)

Question 1131831: Graph the equation y=1/2 and x=3 1/2
Click here to see answer by MathLover1(20849)

Question 1131875: Graph f(g(4))=3
Click here to see answer by Edwin McCravy(20054)

Question 1131879: Please help me solve this,

Draw a line that has a slope of 1/2 and that goes through the point (1, 3).
Click here to see answer by josgarithmetic(39617)

Question 1131879: Please help me solve this,

Draw a line that has a slope of 1/2 and that goes through the point (1, 3).
Click here to see answer by joshuajz(12)

Question 1131880: please help me with this problem,
Graph the equation. y = -3x + 5
Thank you!
Click here to see answer by josgarithmetic(39617)

Question 1131877: Which of the following lines are perpendicular,line(a) x +2y =6 line(b)3x-2y=6, line(c) 6x + 4y=6.Prove answer by graphing
Click here to see answer by Boreal(15235)

Question 1131898: what is the line of the slope when -3/4 passes through (5, -2)
Click here to see answer by greenestamps(13200)

Question 1131898: what is the line of the slope when -3/4 passes through (5, -2)
Click here to see answer by MathLover1(20849)

Question 1131917: What is 9x=-y+5
Click here to see answer by addingup(3677)

Question 1131906: A bed manufacturer makes two types of bed: standard and luxury. The cost of manufacturing each type of bed is 2300$ for a standard model and 3700$ for a luxury model.
It costs 300$ to ship each standard model and 400$ to ship each luxury model. The maximum weekly costs are 851,000$ for manufacturing and 120,000$ for shipping. No more than 300 beds can be manufactured per week. How many bed of each type should be made to maximize profit if the profit is 6000$ on each standard and 8000$ on each luxury?
Click here to see answer by ikleyn(52779)

Question 1131990: What is the slope of (30,100)?

Click here to see answer by MathLover1(20849)

Question 1131990: What is the slope of (30,100)?

Click here to see answer by Alan3354(69443)

Question 1131909: The head of a management information center wants to staff consulting stations with two shifting teams. Team A will comprise of 3 senior programmers and 3 system analysts and Team B will consists of 2 senior programmers and 5 system analysts.
The director wants to use no more than 42 individuals. There will be at least 48 hours to be filled during the week, with Team A shift serving for 4 hours and Team B shift serving 3 hours. The cost of Team A per shift is 3200$ per hour and 2800$ per hour for a Team B per shift.
Determine the number of shifts of each team in order to minimize the cost.
Click here to see answer by greenestamps(13200)

Question 1132168: write an equation in slope intercept form of the line that passes through (-7,2) and is perpendicular to the graph of y=-1/2x + 3
Click here to see answer by josgarithmetic(39617)

Question 1132583: X/3+1/2=x/3+1/6 solve
Click here to see answer by MathLover1(20849)

Question 1132614: The line y=-12/5 x+ 2 is exactly 3 units away from two other lines parallel to it. The distance, in units, between the y-intercepts of these two other lines is...
A)12 3/4 B)10 2/3 C)14 1/5 D)15 3/5 E)13 5/6
Click here to see answer by MathLover1(20849)

Question 1132562: solve: 1+cos(6x)-2cos(4x)=0 on [0 ,pi]
Click here to see answer by greenestamps(13200)

Question 1132562: solve: 1+cos(6x)-2cos(4x)=0 on [0 ,pi]
Click here to see answer by ikleyn(52779)

Question 1132637: The line y=-12/5 x+2 is exactly 3 units away from two other parallel to it. The distance, in units, between the y-intercepts of these two line is
A)12 3/4 B)10 2/3 C)14 1/5 D)15 3/5 E)13 5/6
Click here to see answer by greenestamps(13200)

Question 1132689: ABCD and IJKL are squares where measures shown for side AE and side DE apply to the other three sides of ABCD. Find the area of square IJKL in cm^2.
Here is a link to the diagram : http://i64.tinypic.com/2uh4fi1.jpg

Click here to see answer by MathLover1(20849)

Question 1132904: What is the answer of this :-
(X - y)+(y - z)+(z - x)
Click here to see answer by Alex.33(110)

Question 1132924: 2y+x=4

Click here to see answer by ikleyn(52779)

Question 1132924: 2y+x=4

Click here to see answer by Alan3354(69443)

Question 1132960: A periodic function has a period of 6. If f(3)=-1 and f(8)=5 Determine f(20) and f(-9)
Thank you
Click here to see answer by ikleyn(52779)

Question 1132994: Help we have been working on this question all day, please help
A periodic function has a period of 6. If f(3)=-1 and f(8)=5 Determine f(20) and f(-9)
Click here to see answer by greenestamps(13200)

Question 1133000: At the fair the Ferris Wheel has a diameter of 32m and its centre is 18m above the ground. The wheel completes one revolution every 30 seconds.
a) determine the domain and range of the function.
b) Find the equation for the height of the person in terms of time.
c) How high would the person be after being on the ride for 3.5 minutes?
Click here to see answer by Theo(13342)

Question 1133049: what is the equation of the line with a slope of -2 and passing through the point (-3,5)
Click here to see answer by ikleyn(52779)

Question 1132999: Sketch one cycle of the function: show a table of values and explain how you sketched the function
a) y=1/3sin(x-6)
b) y=1/2sin(x+180)-3

Click here to see answer by Alan3354(69443)

Question 1133001: A person bungee cord jumping oscillates up and down. The distance from their highest point to their lowest point is 10m. and the person takes 7 s to complete 2 cycles. For the first few cycles the distance from the mean position, d metres, with respect to t seconds, is modelled by a cosine function.
a)Sketch a graph of this function for two cycles.
b) Write an equation that describes the distance of the person from their mean position as a function of time.
c) at what height is the person after 9 seconds?

Click here to see answer by ikleyn(52779)

Question 1133222: Solve x-3/x-5 >= 0 for x and graph the solution on a number line.
Click here to see answer by ikleyn(52779)

Question 1133220: x/x+1 > 5
Solve for x.

Click here to see answer by greenestamps(13200)

Question 1133265: find: limt(1^x) as x→∞
Click here to see answer by MathLover1(20849)

Question 1133348: x> -4
y< 5
Click here to see answer by Alan3354(69443)

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, 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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