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

Tutors Answer Your Questions about Linear-equations (FREE)

Question 1172835: What is the equation of each line slope-intercept form?
a. parallel to y=3x+1 through (4,-1)
b. perpendicular to y=3x-4 with the same y-intercept as -x+5y=10
Click here to see answer by ikleyn(52780)

Question 1172897: is the graph of 6x^2-2y=7 on a line?
Click here to see answer by ikleyn(52780)

Question 1172898: What is the equation in slope-intercept form of the line that passes through the points (-4, 47) and (2, -16)?
Click here to see answer by ikleyn(52780)

Question 1173019: Six years ago, a woman was three times as old as her daughter. The sum of their ages was 36. Find their present ages.
Click here to see answer by VFBundy(438)

Question 1173019: Six years ago, a woman was three times as old as her daughter. The sum of their ages was 36. Find their present ages.
Click here to see answer by ikleyn(52780)

Question 1173019: Six years ago, a woman was three times as old as her daughter. The sum of their ages was 36. Find their present ages.
Click here to see answer by josgarithmetic(39617)

Question 1173088: A line passes through the point
8, 4
and has a slope of
3/4
Write an equation in slope-intercept form for this line.
Click here to see answer by Cromlix(4381)

Question 1173121: In Victoria, BC taxis charge $3.00 plus 60 cents per km for a ride. How far can you travel for $19.20?

Click here to see answer by Boreal(15235)

Question 1173125: A plane is currently 5000 km from its destination. 1.5 hours later, it is 3800 km from its destination.
State a reasonable domain and range for your model.
Click here to see answer by math_tutor2020(3816)

Question 1173167: In a candy factory the chocolate bars are 12 cm in length, 7 cm in width, and 3 cm in thickness. While trying to save money, they reduced the volume of the bar by 10%(NOT THE MEASUREMENTS, THE ACTUAL VOLUME) consider reducing 2 dimensions(NOT 3) by the same percent to have the volume of 90% of the original volume. (there are 3 possibilities find all of them)
Click here to see answer by greenestamps(13200)

Question 1173207: Given point P(3,140°), which of the following pairs of polar coordinates is its equivalent?
Click here to see answer by ikleyn(52780)

Question 1173206: Convert the point P(2,45°) to its equivalent rectangular coordinates. For answers with radical sign, write “sqrt” (e.g. for P(square root of 3, 1), write P(sqrt 3, 1))
Click here to see answer by ewatrrr(24785)

Question 1173276: The number of Viking fans in Minneapolis is 225,000 and is decreasing at a rate of 150 per year because they are becoming Packer fans. Write a linear equation that models the total number of fans y for x number of years.

Click here to see answer by ikleyn(52780)

Question 1173336: 2x + y = 12 find the x and y intercepts and graph the line, x and y intercepts must be written as a point.

Click here to see answer by josgarithmetic(39617)

Question 1173596: Suppose you have a ramp that is 4 meters high and 8 meters long. What is the slope of its height by its length?
Click here to see answer by math_helper(2461)

Question 1173643: Determine whether each ordered pair is a solution of 4𝑥 + 5𝑦 ≤ 7.
a. (-3,2)
b. (1,2)
c. (3,2)
Click here to see answer by greenestamps(13200)

Question 1173672: A golf course charges $52 for a round of golf using a set of their clubs, and $44 if you have your own clubs. You decide to buy a set of clubs for $270 and your friend wants to just use the course's clubs.
a) Write an equation to describe the cost for x number of rounds for you.
The answer that I came up with was C=44x+270. C=cost
b)Write an equation to describe the cost for x number of rounds for your friend.
The answer that I came up with was C=52x.
c) How many rounds must you play to recover the cost of the clubs? (Find the break-even point).
The answer that I came up with was
x(52-44)=270
8x=270
x=33.75 or 34 rounds
Click here to see answer by Boreal(15235)

Question 1173715: -3x+3y=-3 x+y+-11 what do i do to solve for x and y

Click here to see answer by josgarithmetic(39617)

Question 1173767: What is an equation that passes though (-1, -2) and (5, -5)
Click here to see answer by ikleyn(52780)

Question 1173818: Ravi the trainer has two solo workout plans that he offers his clients: Plan A and Plan B. Each client does either one or the other (not both). On Friday there were 4clients who did Plan A and 8who did Plan B. On Saturday there were 2clients who did Plan A and 3
who did Plan B. Ravi trained his Friday clients for a total of 9hours and his Saturday clients for a total of 4hours. How long does each of the workout plans last?

Click here to see answer by mila nedic(19)

Question 1173822: Question 1) Find Y when X=-4. then find X when Y=3 (Y=3/4)
Question 2) Find Y when x + -4. Then find x whenY =3. (Y=2.5X +7

Question 3) Find Y when x=-4. Then find x when Y=3 (y=2x -6
I am completely lost with those.....
Thank You
Click here to see answer by Edwin McCravy(20055)

Question 1173894: write and equation of the line that passes through (4, -3) and is perpendicular to the line y = 4x -1

Click here to see answer by mahikab(11)

Question 1173895: write and equation of the line that passes through (4, -3) and is perpendicular to (2, 2)
Click here to see answer by AnlytcPhil(1806)

Question 1173903: 2m + n = 0
m + 2n = 3
Click here to see answer by mahikab(11)

Question 1173903: 2m + n = 0
m + 2n = 3
Click here to see answer by Edwin McCravy(20055)

Question 1173961: f(x)=-2/3(x) + 1/2
Write the equation of a line perpendicular to f that passes through the point (2, 1).
The functions is negative two thirds and the variable is x plus one half.
I'd appreciate a detailed procedure of this because what I really need to do is to is to write a step by step kind of the problem.
Click here to see answer by math_tutor2020(3816)

Question 1173981: Solve the system of equation using substitution.
x = 5
y = 2x - 3
Click here to see answer by ikleyn(52780)

Question 1173981: Solve the system of equation using substitution.
x = 5
y = 2x - 3
Click here to see answer by josgarithmetic(39617)

Question 1173990: 7x-9=y
-5x+7y=-19
Click here to see answer by ikleyn(52780)

Question 1173984: A store sells televisions for $360 and digital video recorders for $270. At the beginning of the week its entire stock is worth $55,530. During the week it sells three quarters of the televisions and one third of the digital video recorders for a total of $32,310. How many televisions and digital video recorders did it have in its stock at the beginning of the week?

Click here to see answer by greenestamps(13200)

Question 1174043: In the equation 2y + ax = 10, for what value of a does the graph of the equation have a slope of 1?
Click here to see answer by ewatrrr(24785)

Question 1174043: In the equation 2y + ax = 10, for what value of a does the graph of the equation have a slope of 1?
Click here to see answer by ikleyn(52780)

Question 1174043: In the equation 2y + ax = 10, for what value of a does the graph of the equation have a slope of 1?
Click here to see answer by MathTherapy(10552)

Question 1174058: Solve the system by graphing. See Example 4. (Objective 3)
x = 5 − 2y
3x + 6y = 15
1. State whether the system is inconsistent or if the equations are dependent.
inconsistent
dependent
Correct: Your answer is correct.
2. Write the solution set. (Simplify your answer completely. If there is no solution, enter NO SOLUTION. If the system is dependent, enter a general solution in terms of x or y.)
Click here to see answer by ewatrrr(24785)

Question 1174096: Do the vectors (1, -2, 6), (1, 4, 3), (3, -3, 1) and
(2, 2, 3) span R³ or not?
Click here to see answer by ikleyn(52780)

Question 1174095: Determine whether (1, -2, 6), (1, 4, 3), (3, -3, 1) and (2, 2, 3) span R³ or not?
Click here to see answer by ikleyn(52780)

Question 1174210: Y= -4x + 4
Slope=
Y-intercept=
Click here to see answer by ikleyn(52780)

Question 1174241: The purchase price for a company car is $19,800. The useful life is 6 years after which it will have an estimated scrap value of $1,200.
-Find the linear equation relating book value and number of years.
- What is the book value after four years?
Show all work.
Click here to see answer by Theo(13342)

Question 1174258:
Click here to see answer by josgarithmetic(39617)

Question 1174257: the unit cost per gizmo is $30,the fixed cost for making gizmos is $1,200. 60 gizmos must be sold in order to break even.
*Find linear cost function
*Find linear revenue function
*Find linear profit function
Show work with all steps
Click here to see answer by greenestamps(13200)

Question 1174277: write an equation of the line that passes through (5, -4) and is parallel to y=2x+3
Click here to see answer by math_helper(2461)

Question 1174277: write an equation of the line that passes through (5, -4) and is parallel to y=2x+3
Click here to see answer by MathTherapy(10552)

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