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

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Question 1107905: Slope is 7 its passing through the point (-1,3)

Click here to see answer by ikleyn(52780)

Question 1107905: Slope is 7 its passing through the point (-1,3)

Click here to see answer by josgarithmetic(39617)

Question 1108086: write in slope intercept form: parallel to y=6, through point (2,-3)
Click here to see answer by josgarithmetic(39617)

Question 1108086: write in slope intercept form: parallel to y=6, through point (2,-3)
Click here to see answer by Alan3354(69443)

Question 1108171: 0 = 6 + 3x − 2y find the slope
Click here to see answer by Timnewman(323)

Question 1108180: i have for a long time been puzzled by the question as to whether there is a real solution for determining in advance which equation system (among others, linear quadratic etc...) best fit the scenario of depicting a strong association between dependent, experimented , controlled and independent variables?
Click here to see answer by Theo(13342)

Question 1108175: which equation systems among the known ones namely linear , quadratic or simultaneous systems are preffered for solving relationships in data?
Click here to see answer by Collinwilfixyouuprealnice(44)

Question 1108132: Liz earns a salary of $2,000 per month, plus a commission of 5% of her sales. She wants to earn at least $2,600 this month.Enter an inequality to find amounts of sales that will meet her goal. Identify what your variable represents. Enter the commission rate as a decimal.

Click here to see answer by ikleyn(52780)

Question 1108245: Solve the following system of linear equations using the addition method:
6x - 5y = -34
2x + 6y = 4
Express answer as an ordered pair
Click here to see answer by josgarithmetic(39617)

Question 1108243: Solve the following system of linear equations using the addition method:
-2x + 5y = -42
7x + 2y = 30
Express the answer as an ordered pair
Click here to see answer by Alan3354(69443)

Question 1108247: When hired at a new job selling electronics, you are given two pay options:
Option A: Base salary of $14,000 a year with a commission of 10% of your sales
Option B: Base salary of $20,000 a year with a commission of 4% of your sales.
After what amount of your sales (in $) does option A produce a larger paycheck for you?
Click here to see answer by ikleyn(52780)

Question 1108320: I submitted this problem once, but it ran together. I will try again, for i want you to see what Ive came up with. Problem is solve and check the inequality, if possible. |8m+4|<12
8m+4>-12
8m+4-4>-12-4
8m/>-16/8
m>-2
check:
8m+4>-12
8(2)+4>-12
16+4>-12
20>-12
correct
8m+4<12
8m+4-4<12-4
8m/8<8/8
m<1
check:
8m+4<12
8(1)+4<12
8+4<12
12<12
not correct

Have I completed this correctly? Thank you

Click here to see answer by Alan3354(69443)

Question 1108589: If the slope is 2/3 what is the parallel line and what is the perpendicular line?
Click here to see answer by ikleyn(52780)

Question 1108589: If the slope is 2/3 what is the parallel line and what is the perpendicular line?
Click here to see answer by josgarithmetic(39617)

Question 1108612: can you solve this using substitution?
-2x+y=-11
4x+4y=4
Click here to see answer by Alan3354(69443)

Question 1108611: can you solve this using substitution?
y+x+3
-3x+2y=6
Click here to see answer by ikleyn(52780)

Question 1108611: can you solve this using substitution?
y+x+3
-3x+2y=6
Click here to see answer by Alan3354(69443)

Question 1108610: Can you solve this using substitution?
{2x-2y=6
{y=4x
Click here to see answer by Alan3354(69443)

Question 1108610: Can you solve this using substitution?
{2x-2y=6
{y=4x
Click here to see answer by ikleyn(52780)

Question 1108654: Two numbers total 66 and have a difference of
32. Find the two numbers.

Click here to see answer by addingup(3677)

Question 1108649: Jen Butler has been pricing Speed-Pass train fares for a group trip to New York. Three adults and four children must pay $ 80Two adults and three children must pay $ 57. Find the price of the adult's ticket and the price of a child's ticket.
Click here to see answer by josgarithmetic(39617)

Question 1108708: Parallel to 4x+20y=33, passing through (1,7).

Click here to see answer by ikleyn(52780)

Question 1108723: Y=x-7
Y+X=3

Click here to see answer by Alan3354(69443)

Question 1108753: Two numbers total 61 and have a difference of 13. Find the two numbers.
Click here to see answer by ikleyn(52780)

Question 1108753: Two numbers total 61 and have a difference of 13. Find the two numbers.
Click here to see answer by greenestamps(13200)

Question 1108754: A first number plus twice a second number is 2. Twice the first number plus the second totals 31. Find the numbers.
Click here to see answer by josgarithmetic(39617)

Question 1108869: Find the equation of the line with slope -3 and y- intercept (0,2)
Click here to see answer by josgarithmetic(39617)

Question 1108878: equation of a line passing through (-2,7) with slope of -1

Click here to see answer by stanbon(75887)

Question 1108898: Set up a system of linear equations and solve for the indicated quantities
The sum of two positive numbers is 26. Their difference is 14. Find the numbers.
Click here to see answer by ikleyn(52780)

Question 1108894: Set up a system of linear equations and solve for the indicated quantities.

Two angles are supplementary. One angle is 15 degrees more than 10 times the other angle. Find the measure of each angle?
Click here to see answer by josgarithmetic(39617)

Question 1108896: Set up a system of linear equations and solve for the indicated quantities
Jim goes to the movies every Friday night with his friends. Last week, they bought 25 adult tickets and 40 youth tickets at a total cost of $620. This week, they spend $560 on 30 adult and 25 youth tickets. Find the cost of one adult and one youth ticket?
Click here to see answer by josmiceli(19441)

Question 1108775: Please help me answer the following question:
A graph that is deflection (y-axis) vs load (x-axis) produces a straight line.
Prove that the deflection at the centre of a beam equation which is:
produces a straight line.
where: Y= Deflection(m), W =Load(N), L =Length (m), E =Young�s Modulus (N/m^2) and I =Second moment of Area (m^4)
So prove that = where C (where the line crosses the Y axis)= 0

Click here to see answer by Boreal(15235)

Question 1108897: Set up a system of linear equations and solve for the indicated quantities
The number of mathematics teachers at a local high school is 5 more than 4 times the number of English teachers. The high school has 100 Mathematics and English teachers in all. Let x equal the number of mathematics teachers and let y equal the number of English teachers Find the number of Mathematics and English teachers that work for the local high school.
Click here to see answer by stanbon(75887)

Question 1108895: Set up a system of linear equations and solve for the indicated quantities.

Nathan buys a combination of 45 cents stamps and 65 cents stamps at the post office. If he spends exactly $24.50 on 50 stamps, how many of each type did he buy?
Click here to see answer by MathLover1(20849)

Question 1109058: What are all the equations of the lines that intersect the graph of 5x+Y=14 at (2,4).
Explain why.

Click here to see answer by josgarithmetic(39617)

Question 1109058: What are all the equations of the lines that intersect the graph of 5x+Y=14 at (2,4).
Explain why.

Click here to see answer by Alan3354(69443)

Question 1109156: Find a value for B so that the line y = 10x � B, goes through the point (5,-5).
Click here to see answer by Alan3354(69443)

Question 1109155: Find the equations of 2 lines that both go through the point (3,-2), one with slope 4 and one with slope -1/4. Write your answer in general form. Do not use any space between the letter (lower case), symbol and number, say x+y-1=0
Click here to see answer by josgarithmetic(39617)

Question 1109364: In the lab, Dale has two solutions that contain alcohol and is mixing them with each other. He uses twice as much Solution A as Solution B. Solution A is 15% alcohol and Solution B is 19% alcohol. How man milliliter of Solution B does he use, if the resulting mixture had 392 milliliters of pure alcohol?
Click here to see answer by ikleyn(52780)

Question 1109360: Two trains leave the station at the same time, one heading east and the other heading west. The eastbound train travels at 90 mph. The westbound train travels that 80 mph how long will it take for the two trains to be 476 miles apart ?
Do not round off.
Click here to see answer by josgarithmetic(39617)

Question 1109363: Decide which of the
Two given functions is liner and find its equation
x -10 0 10 20 30
F (x) -1.5 0 1.5 2.5 4.5
g (x) -7 -2 3 8 13

Click here to see answer by stanbon(75887)

Question 1109396: Which function is not linear?
Select one:
a. f(x)=5/x
b. f(x)=3x -4
c. f(x)=5
d. f(x)=-7x
Click here to see answer by math_helper(2461)

Question 1109361: Rachel is going to rent a truck for one day There are two companies she can choose from, and they have the following prices
Company A charges $110 and allows unlimited mileage
Company B has an initial fee of $65 and charges an additional $.90 for every mile driven
For what mileages will Company A charge less than Company B?
Use M for the number of miles driven, and solve your inequality for M.
Click here to see answer by Boreal(15235)

Question 1109535: Write in slope-intercept form an equation of a line that passes through the point (8, 2) that is parallel to the graph of the equation y=4x−3.
Click here to see answer by josmiceli(19441)

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, 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