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

Tutors Answer Your Questions about Graphs (FREE)

Question 889417: Graph the parabola y=-5/4x^2
To graph the parabola, plot the vertex and four additional points, two on each side of the vertex. Then click on the graph icon.
Click here to see answer by Fombitz(32388)

Question 889848: Subtract the 2 matrices below, where possible.
-1 2 2 1
0 4 - 7 4
6 -4 3 2
Click here to see answer by josgarithmetic(39617)

Question 889999: Solve each system graphically if possible
x+y=7
x-y=1
Click here to see answer by Fombitz(32388)

Question 890282: Evaluate and graph each expression.
[(0.1)^0.1]^0.1

Please help. Having real issues with this
Click here to see answer by solver91311(24713)

Question 890298: -2 (x+2)-4 (y+4)
Click here to see answer by jim_thompson5910(35256)

Question 890424: A line through (3, -4) with a slope of -9 has a y-intercept at ??
Click here to see answer by lwsshak3(11628)

Question 890625: The function P(t) = 145e-0.092t models a runner�s pulse, P(t), in beats per minute, t minutes after a race, where 0 ≤ t ≤15. Graph the function using a graphing utility. TRACE along the graph and determine after how many minutes the runner�s pulse will be 70 beats per minute. Round to the nearest tenth of a minute. Verify your observation algebraically.
*Also I have no idea how to graph this on microsoft word could someone please help! Thanks!
Click here to see answer by rothauserc(4718)

Question 890672: Find the distance between the pair of points.
(19,3) and (3,-19)
Click here to see answer by lwsshak3(11628)

Question 890672: Find the distance between the pair of points.
(19,3) and (3,-19)
Click here to see answer by josmiceli(19441)

Question 890788:
always have issues with fractions have problems with this equation. solve by substitution. 3x-2y=3 x-1/3y=8

Click here to see answer by Alan3354(69443)

Question 891331: Graph x-2y= -4
Click here to see answer by Alan3354(69443)

Question 891483: Graph the function.
f(x)=log1/6 (x)
Click here to see answer by Fombitz(32388)

Question 891642: Find the point-slope form of an equation of a line through the points (-1,4) and (-3/5, 3/2)
I am not getting the this problem, and the answer in the book does not make sense. Please Help
Click here to see answer by lwsshak3(11628)

Question 891716: How would you solve and graph this inequality 6-x > 15
Click here to see answer by LinnW(1048)

Question 891766: Solve the following system by graphing:
y= 2x + 3
y= 3x+ 1
Click here to see answer by josgarithmetic(39617)

Question 891989: "the inequality of -6x + 3 < or = 15"
Click here to see answer by rfer(16322)

Question 892099: (x-y)(x+y)=0
Click here to see answer by Fombitz(32388)

Question 892137: Solve and graph solution
8-x>=2(x-6)+5 and 13x-6<3(3x+1) -1
Click here to see answer by josgarithmetic(39617)

Question 892454: PLEASE HELP ME!!!
A researcher is studying the relationship between the number of players on a soccer team and the number of minutes that a player spends in a game rather than on the sideline. What type of correlation would you expect to find between these two quantities? given that 11 players can play at one time. a maximum of 25 players can be on a roster, and there are 90 minutes in a regulation game, write and equation of a line that may closely for a set of data related to this topic?
THANK YOU!!!!
Click here to see answer by stanbon(75887)

Question 892609: The credit remaining on a phone card (in dollars) is a linear function of the total calling time made with the card (in minutes). The remaining credit after minutes of calls is , and the remaining credit after minutes of calls is . What is the remaining credit after minutes of calls?
Click here to see answer by jim_thompson5910(35256)

Question 892886: please show me how to answer the equation for the parallel line using y=x+4
(-7,1)showing how the work was performed to find the slope using the slope-intercept form. Now the equation looks like??? Then simplify and distribute the slope. What if my given expression for my parellel line? As well as the equation for my perpendicular line is y=-1/2+1(4,2) using the point=slope form of y-y1=m(X-X1)
Click here to see answer by josgarithmetic(39617)

Question 892806: Following five points form pentagon mnpqr

Click here to see answer by Alan3354(69443)

Question 892995: Find slope, x-intercept, and y-intercept of each question and please provide steps
1. y=4-x
2. y=-2
3. -3/2x-5=y
Click here to see answer by Alan3354(69443)

Question 893196: Write the equation y=3x+5 in function notation using the letter f to denote the function.
Click here to see answer by richard1234(7193)

Question 893413: Find the indicated intercept(s) of the graph of the function.
x-intercepts of f(x) = x^2-x-20/x^2+5
Given Answers are A.(-20,0) B. (5,0), (-4,0) C. (4,0), (0,0) D. (4,0),(-5,0)
Click here to see answer by Fombitz(32388)

Question 893447: Solve the system by graphing. (If the system is inconsistent, enter INCONSISTENT. If the system is dependent, enter DEPENDENT.)

x − y = 2
2x + 3y = 9
(x, y) =
Click here to see answer by Fombitz(32388)

Question 893470: Which of the following equations describes the line shown below? Check all that apply.
Line: (1,13) (-2,4)
Check all that apply
A. y - 4 = 3 (x - 2)
B. y - 4 = 3(x + 2)
C. y - 1 = 3(x - 13)
D. y - 2 = 3(x - 4)
E. y - 13 = 3(x - 1)
F. y + 2 = 3(x - 4
Click here to see answer by Fombitz(32388)

Question 893512: the questions says
sketch the graph of: 6x+9y=36
and then on the same axes sketch the graph of : 4x-2y-8=0
i dont know how to do that..please help
Click here to see answer by Alan3354(69443)

Question 893511: the questions says
sketch the graph of: 6x+9y=36
and then on the same axes sketch the graph of : 4x-2y-8=0
i dont know how to do that..please help
Click here to see answer by Alan3354(69443)

Question 893502: (A) -3x+3y=3 (B) 2x+2y-10=0
x-y=1 3x-y-3=0
Find the solution of the given system of equations graphically.
Click here to see answer by josgarithmetic(39617)

Question 893499: I'm not shure how to graph this or solve it. It just said to solve it algebraically.
3x+2y=10 and y=-4x+15
Thank you

Click here to see answer by josgarithmetic(39617)

Question 893494: Find the slope and the y-intercept for the line -3x+6y-9=0. Sketch the line in a graph.
Click here to see answer by josgarithmetic(39617)

Question 893492: Write the slope-intercept equation y=mx+b for the line through the point (-5,-7) perpendicular to the line -4x+6y-12=0. Sketch the graph of both lines in a graph.
Click here to see answer by Fombitz(32388)

Question 893495: Write the slope-intercept equation for the line through the point (2,-5) with slope -2/3. Sketch the line in the graph.
Click here to see answer by Fombitz(32388)

Question 893709: Below is the log book for Peter, a driver at Annie's Taxis. It records three of his fares.
City to Brunswick - Cost: $9.50 - Distance: 5KM
Brunswick to Thonrbury - Cost: $14 - Distance: 8KM
Nortcote to Lalor - Cost: $20 - Distance: 12KM
1. Record the information in a table of values
2. Determine the value of the gradient (slope)
3. Show the y intercept on your graph and write down its coordinate
4. Write an equation that models the relationship between total distance and cost
5. What is illogical about a linear
Click here to see answer by richwmiller(17219)

Question 893877: Graph the linear inequality 8x-y<8
Click here to see answer by Fombitz(32388)

Question 894040: Given Vertex (1,5) and Point (2,1) Write in vertex form & graph it. Please explain the steps too.
Click here to see answer by josgarithmetic(39617)

Question 894254: What is x if f(x) = 23
Click here to see answer by Fombitz(32388)

Question 894802: what is the y-intercept and slope of -6x-4y+4=0

Click here to see answer by josgarithmetic(39617)

Question 894398: select the approximate values of x that are solutions to f(x)=0, where f(x)=-9x^2+8x+5.

select the approximate values of x that are solutions to f(x)=0, where f(x)=-7x^2+9x+7.
select the approximate values of x that are solutions to f(x)=0, where f(x)=-9x^2+2x=8.

Click here to see answer by Fombitz(32388)

Question 894915: Referring to the figure, write the equation of the horizontal line through the point (0,3).
(Image is in below link.)
http://www.ppstest2.com/images2/AL5005.jpg
Click here to see answer by Fombitz(32388)

Question 894913: Write the equation y = -3x + 9 in standard form with integer coefficients.
How do I do this and what is the answer?
Click here to see answer by Fombitz(32388)

Question 894938: Referring to the figure, write an equation of the line shown in the graph. Use the slope and y-intercept format: y = mx + b
http://www.ppstest2.com/images2/AL5004.jpg
Click here to see answer by Fombitz(32388)

Question 894947: I'm trying to write an equation of a line in point-slope form, or y-y1 = m(x-x1) . The problem provides the slope -1/2 and y-intercept 2. How do I put this into point-slope form?
Click here to see answer by richard1234(7193)

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