Questions on Algebra: Linear Equations, Graphs, Slope answered by real tutors!

Tutors Answer Your Questions about Linear-equations (FREE)

Question 664547: I was hoping to get some help on this homework question I am stuck on, thanks!
A triangle is formed by the intersection of the lines 2x + 3y = 14, 4x - 5y = -16, and the x - axis. Find the area of the triangle.
Click here to see answer by MathLover1(20849)

Question 664563: I have no clue how to solve this

Graph the line that satisfies each set of conditions
passes through(0,1), perpendicular to a line whose slope is 1/3
Click here to see answer by solver91311(24713)

Question 664058: How do you graph 4x+3y=-5?
Click here to see answer by ReadingBoosters(3246)

Question 664748: 3[F(r)] = 3x+7
Click here to see answer by lynnlo(4176)

Question 664141: Solve for x: v=1/6ab(x+y) for x
Click here to see answer by ReadingBoosters(3246)

Question 664202: the lone star shipping company charges$14 plus $2 a pound to ship an overnight package. discount shipping company charges $20 plus $1.50 a pound over night package. for what weight is the charge the same for the companies
Click here to see answer by ReadingBoosters(3246)

Question 664917: Explain, in complete sentences, how you would use the graphing method to solve the following system of equations. Provide the solution to the system and explain what the solution represents on the graph.
3x - 6y = 12
9x + 2y = -24
Click here to see answer by ewatrrr(24785)

Question 664916: Find the value of x:
3x-2 = 10-x
Use either the multiplicative inverse or the additive inverse.
Click here to see answer by ewatrrr(24785)

Question 664926: if a ball is thrown directly upward with a velocity of 40 ft/sec, its height (in feet) after t seconds is given by the function: h(t)=-16t^2+40t
Click here to see answer by Alan3354(69443)

Question 664938: Find the value of x:
5(x+2)-4(x-3) = 22
Click here to see answer by lynnlo(4176)

Question 664938: Find the value of x:
5(x+2)-4(x-3) = 22
Click here to see answer by ewatrrr(24785)

Question 664937: Find the value of x:
18+3x = 2x+3
Use either the Additive Inverse or the Multiplicative Inverse
Click here to see answer by lynnlo(4176)

Question 665086: For hands on equations: 20+15x-10x+5x=5x+25
Click here to see answer by jim_thompson5910(35256)

Question 665191: I need to find a line parallel to 3x - 5y = 10 passing through (-5,1).

Click here to see answer by MathLover1(20849)

Question 665012: A factory can produce two products, x and y, with a profit approximated by P = 14x + 22y � 900. The production of y can exceed x by no more than 200 units. Moreover, production levels are limited by the formula x + 2y ≤ 1600. What production levels yield maximum profit?
A. x = 400; y = 600
B. x = 0; y = 0
C. x = 1,600; y = 0
D. x = 0; y = 200
Click here to see answer by KMST(5328)

Question 665234: what is the constant of proportionality of y=5/6x

Click here to see answer by math-vortex(648)

Question 665280: -4x+6y=18
Click here to see answer by ReadingBoosters(3246)

Question 665246: Find the Value of r so the line that passes through each pair of points has the given slope.
(-4,3), (r,5), M=1/4
This is the formula that I am supposed to use Y2-Y1/X2-X1
This is what I have -2/-4-r, but I do not know where to go from here
Click here to see answer by ReadingBoosters(3246)

Question 665144: Determine the slope and y-intercept of each linear function.
y=-7/2+5/2x
Click here to see answer by ReadingBoosters(3246)

Question 665111: what is the y intercept of the line whose slope is 4 and which passes through the point (8,15) ?
Click here to see answer by ReadingBoosters(3246)

Question 665041: The line y − 6 = 2(x + 4) passes through which one of the following points?

(−4, −6)
(4, −6)
(−4, 6)
(2, 6)
Click here to see answer by ReadingBoosters(3246)

Question 664786: 2x+31=-7(x-5)
Click here to see answer by ReadingBoosters(3246)

Question 664671:
Concerned with poverty, twenty-seven adults conducted a survey. According to the results 35% of the adults are concerned with poverty. Let x= number of adults surveyed, and y= adults concerned with poverty. If 200 adults are surveyed, how many are concerned with poverty.
Click here to see answer by ReadingBoosters(3246)

Question 664646: y=3x - 1
determine whether each ordered pair is a solution
(4,11) or 7,12) or (17,23)
Click here to see answer by ReadingBoosters(3246)

Question 664591: what is the slope and y-intercept of :
y = -2x + 1

Click here to see answer by ReadingBoosters(3246)

Question 664514: Write an equation of the line in standard form with integer coefficients.

the line through (8, 3) parallel to x + 2y = 6
Click here to see answer by ReadingBoosters(3246)

Question 664512: Write an equation of the line in standard form with integer coefficients.
the line through (8, 3) perpendicular to x + 2y = 6
Click here to see answer by ReadingBoosters(3246)

Question 664484: A line with a slope -2 that passes through the point (3,-9) what the equation?
Click here to see answer by ReadingBoosters(3246)

Question 664147: Write the equation of the line in slope intercept form once you have written it in slope intercept form, provide the standord form as we'll
l. M=-6 b=-3

2. M=-5 b=8
Click here to see answer by ReadingBoosters(3246)

Question 664040: find the slope of the line through the pair of points A(2, 3), P(2,9)

Click here to see answer by ReadingBoosters(3246)

Question 663853: What would the graph look like if it had an equationof this. -3/4x+6=y
Click here to see answer by ReadingBoosters(3246)

Question 665446: If the point (-1,6) is shifted 2units to the left and 4 units up, what are its new coordinates
Click here to see answer by ReadingBoosters(3246)

Question 665445: find all points having y-coordinate of -6 whose distance is from the point (1,2) is 17.
Click here to see answer by mananth(16946)

Question 665472: I really need help graphing the first degree inequalities in two unknowns in a problem 3x<4
Click here to see answer by mananth(16946)

Question 665537: Solve the following system. Show all your work.
-3x + 2y + z = -6
x + 3y + 2z = 5
4x + 4y + 3z = 13

Click here to see answer by lynnlo(4176)

Question 665540: Explain how to find the equation of the line passing through (2,5) that is parallel to the line passing through the points (-3,-2) and (4,-2)

Click here to see answer by htmentor(1343)

Question 665611: find the interspets then use the interspets to graph the equation
-3x = 6y-2
Click here to see answer by Alan3354(69443)

Question 665611: find the interspets then use the interspets to graph the equation
-3x = 6y-2
Click here to see answer by ReadingBoosters(3246)

Question 665628: how do you solve this equation
3x+6-1x=6+3x-8
Click here to see answer by ReadingBoosters(3246)

Question 665708: Find the linear function satisfying the given conditions. The x intercept and y intercept of the inverse function are 3 and -1.find f(x)
Click here to see answer by MathLover1(20849)

Question 665796: Your computer-supply store sells two types of inkjet printers. The first, type A, costs $237 and you make a $22 profit on each one. The second, type B, costs $122 and you make a $19 profit on each one. You can order no more than 120 printers this month, and you need to make at least $2,400 profit on them. If you must order at least one of each type of printer, how many of each type of printer should you order if you want to minimize your cost?
69 of type A : 51 of type B
40 of type A : 80 of type B
51 of type A : 69 of type B
80 of type A : 40 of type B

Click here to see answer by ReadingBoosters(3246)

Question 665933: I am having a really hard time with this. Can you help me and explain in detail so I can understand how to do this? Thanks.
Find an equation line perpendicular to the line -2x-7y=7 having the same y intercept as -9y-4y=-6
Click here to see answer by ReadingBoosters(3246)

Question 666034: A jar filled with change is holding 5.45 and has 41 coins. There are nickles dimes and quarters. If we remove the nickles, the remaining coins have a value of 4.55. How many type of each coin were there originally? Please set up a system of 3 equations and solve to answer this question. Please show work.
Click here to see answer by vleith(2983)

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, 24976..25020, 25021..25065, 25066..25110, 25111..25155, 25156..25200, 25201..25245, 25246..25290, 25291..25335, 25336..25380, 25381..25425, 25426..25470, 25471..25515, 25516..25560, 25561..25605, 25606..25650, 25651..25695, 25696..25740, 25741..25785, 25786..25830, 25831..25875, 25876..25920, 25921..25965, 25966..26010, 26011..26055, 26056..26100, 26101..26145, 26146..26190, 26191..26235, 26236..26280, 26281..26325, 26326..26370, 26371..26415, 26416..26460, 26461..26505, 26506..26550, 26551..26595, 26596..26640, 26641..26685, 26686..26730, 26731..26775, 26776..26820, 26821..26865, 26866..26910, 26911..26955, 26956..27000, 27001..27045, 27046..27090, 27091..27135, 27136..27180, 27181..27225, 27226..27270, 27271..27315, 27316..27360, 27361..27405, 27406..27450, 27451..27495, 27496..27540, 27541..27585, 27586..27630, 27631..27675, 27676..27720, 27721..27765, 27766..27810, 27811..27855, 27856..27900, 27901..27945, 27946..27990, 27991..28035, 28036..28080, 28081..28125, 28126..28170, 28171..28215, 28216..28260, 28261..28305, 28306..28350, 28351..28395, 28396..28440, 28441..28485, 28486..28530, 28531..28575, 28576..28620, 28621..28665, 28666..28710, 28711..28755, 28756..28800, 28801..28845, 28846..28890, 28891..28935, 28936..28980, 28981..29025, 29026..29070, 29071..29115, 29116..29160, 29161..29205, 29206..29250, 29251..29295, 29296..29340, 29341..29385, 29386..29430, 29431..29475, 29476..29520, 29521..29565, 29566..29610, 29611..29655, 29656..29700, 29701..29745, 29746..29790, 29791..29835, 29836..29880, 29881..29925, 29926..29970, 29971..30015, 30016..30060, 30061..30105, 30106..30150, 30151..30195, 30196..30240, 30241..30285, 30286..30330, 30331..30375, 30376..30420, 30421..30465, 30466..30510, 30511..30555, 30556..30600, 30601..30645, 30646..30690, 30691..30735, 30736..30780, 30781..30825, 30826..30870, 30871..30915, 30916..30960, 30961..31005, 31006..31050, 31051..31095, 31096..31140, 31141..31185, 31186..31230, 31231..31275, 31276..31320, 31321..31365, 31366..31410, 31411..31455, 31456..31500, 31501..31545, 31546..31590, 31591..31635, 31636..31680, 31681..31725, 31726..31770, 31771..31815, 31816..31860, 31861..31905, 31906..31950, 31951..31995, 31996..32040, 32041..32085, 32086..32130, 32131..32175, 32176..32220, 32221..32265, 32266..32310, 32311..32355, 32356..32400, 32401..32445, 32446..32490, 32491..32535, 32536..32580, 32581..32625, 32626..32670, 32671..32715, 32716..32760, 32761..32805, 32806..32850, 32851..32895, 32896..32940, 32941..32985, 32986..33030, 33031..33075, 33076..33120, 33121..33165, 33166..33210, 33211..33255, 33256..33300, 33301..33345, 33346..33390, 33391..33435, 33436..33480, 33481..33525, 33526..33570, 33571..33615, 33616..33660, 33661..33705, 33706..33750, 33751..33795, 33796..33840, 33841..33885, 33886..33930, 33931..33975, 33976..34020, 34021..34065, 34066..34110, 34111..34155, 34156..34200, 34201..34245, 34246..34290, 34291..34335, 34336..34380, 34381..34425, 34426..34470, 34471..34515, 34516..34560, 34561..34605, 34606..34650, 34651..34695, 34696..34740, 34741..34785, 34786..34830, 34831..34875, 34876..34920, 34921..34965, 34966..35010, 35011..35055, 35056..35100, 35101..35145, 35146..35190, 35191..35235, 35236..35280, 35281..35325, 35326..35370, 35371..35415, 35416..35460, 35461..35505, 35506..35550, 35551..35595, 35596..35640, 35641..35685, 35686..35730, 35731..35775, 35776..35820, 35821..35865, 35866..35910, 35911..35955, 35956..36000, 36001..36045