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

Tutors Answer Your Questions about Linear-equations (FREE)

Question 1089751: Find the coordinates of two points on the given line, and then use those coordinates to find the slope of the line. (If an answer is undefined, enter UNDEFINED.)
3x + 5y = 15
Click here to see answer by Alan3354(69443)

Question 1089610: In testing an experimental diet for hens, it was determined that the average live weight w(in grams) of a hen was statistically a linear faction of the number of days d after the diet began, suppose the average weight of a hen beginning the diet was 40 grams and 20 days later it was 675 grams. determine w as a linear faction of d.
Click here to see answer by Boreal(15235)

Question 1089958: Y=3/2x+5 what is the value of the slope
Click here to see answer by math_helper(2461)

Question 1090015: Suppose that a household monthly water bill (in dollars)is a linear function of the amount of water the household uses (in hundred square cubic feet, HCF)When graphed, the function gives a line with a slope of 1.75 if the monthly HCF is 47.99 what is the monthly cost for 19 HCF?
Click here to see answer by ikleyn(52781)

Question 1090024: Hi Tutors can you please assist me with the problem below. Thank you
A line has a slope of 5 and includes the points (-5,0) and (-6,f). What is the value of f?
f=
Click here to see answer by josgarithmetic(39617)

Question 1090055: Dear Tutors can you please help me solve the problem below. Thank you
A line has a slope of 2 and includes the points (8,7)and (4,p).

What is the value of p?
p=
Click here to see answer by math_helper(2461)

Question 1090097: Hi! Tutors I'm in need of a little help on this question any help is
appreciated thank you
A line that includes the points (8,0) and (2,q) has a slope of 1/6.
What is the value of a?
q=
Click here to see answer by josgarithmetic(39617)

Question 1090236:
A line that includes the points (8,0)and (2,q) has a slope of 1/6.
What is the value of q?
q=
Thank you for assisting me
Click here to see answer by Fombitz(32388)

Question 1090280: 2x-y+3z=0
x+2y-z=5
2y+z=1
use gaussian reduction method matrix to solve the following linear system
Click here to see answer by MathLover1(20849)

Question 1090299: solve the following systems of equations by elimination. verify the solutions.
4m-3n=27
8m-6n=18
Click here to see answer by Boreal(15235)

Question 1090299: solve the following systems of equations by elimination. verify the solutions.
4m-3n=27
8m-6n=18
Click here to see answer by ikleyn(52781)

Question 1090298: solve the following systems of equations by elimination. verify the solutions.
4m-3n=27
8m-6n=18
Click here to see answer by Alan3354(69443)

Question 1090298: solve the following systems of equations by elimination. verify the solutions.
4m-3n=27
8m-6n=18
Click here to see answer by ikleyn(52781)

Question 1090284: use matrix to solve:
A working couple earned a total of $4352.The wife earned $64per day;the husband earned $8 less per day. Find the number of days worked if the total number of days worked by both was 72

Click here to see answer by ikleyn(52781)

Question 1090282: 3x+5y-z+2=0
4x-y+2z-1=0
-6xx-10y+2z=0
use gaussian reduction method to solve the following linear equation
Click here to see answer by ikleyn(52781)

Question 1090327: The denominator of a fraction exceeds the numerator by 2.if 4 is subtracted from numerator or 12 is added to the denominator the same fraction is obtained. Find the fraction.

Click here to see answer by josgarithmetic(39617)

Question 1090349: use gaussian reduction method to solve the following equation
2x-y+4z=1
y+z=3
Click here to see answer by Alan3354(69443)

Question 1090440: Price supply Demand
$20 150 500
$30 250 400
$50 450 200

Find the supply equation
Click here to see answer by dennisrizelleruiz(5)

Question 1090279: x-z=-3
y+z=9
x+z=7
solve the following linear system by using gaussian reduction method matrix
Click here to see answer by greenestamps(13200)

Question 1090283: use goussian reduction method to solve the following linear system
2x-y+4z=1
y+z=3
Click here to see answer by greenestamps(13200)

Question 1090552: Given the system of equations.
4x+y=8
6x-9y=12
Which of the options represents the resulting equation after an equivalent expression for y is substituted into the second equation?
6x - 9(4x - 8) = 12
4x + 4x - 8 = 8
6(4x - 8) - 9y = 12
6x - 9(-4x + 8) = 12
I also do not understand how to find this, so any help would be nice on that subject
Click here to see answer by jim_thompson5910(35256)

Question 1090568: Solve for x 16x + 4 when the opposite angle is 80 degrees
/
__________________/_________
16x+4 /
/
____________80_/____________
/
/

Click here to see answer by Fombitz(32388)

Question 1090659: If the slope of AB is −4/7 and A (3,k+2) and B (k-8, 4) find the value of k.
Click here to see answer by josgarithmetic(39617)

Question 1090687: I have to use slope-intercept from y=mx+b to write an equation for this line:
containing the points (1,-3) and (-5,4)
My answer is: y = -(6/7)x - (15/7)
Can someone help me? Thanks.
Click here to see answer by Fombitz(32388)

Question 1090713: A video rental company has two monthly plans. Plan A charges a flat fee of $30 for unlimited rentals;
Plan B charges $9, plus $3 per video.
Draw the cost of each plan on the grid and use a graphical to determine the conditions which is cheaper. Plan A or Plan B?
Click here to see answer by Fombitz(32388)

Question 1090740: Theo has $5 more than Denise and Denise had $11 more than rudy. Together they have $45. How much money does Denise have?
Click here to see answer by Fombitz(32388)

Question 1090740: Theo has $5 more than Denise and Denise had $11 more than rudy. Together they have $45. How much money does Denise have?
Click here to see answer by MathTherapy(10552)

Question 1090694: y=-2/3x+5
Click here to see answer by Alan3354(69443)

Question 1090858:
The electric potential, , in volts, between two metal plates a distance of millimetres from the left plate is given by the equation above when 0≤d≤15. By how many millimetres does the distance from the left plate increase for the potential to increase by 1 volt?
Click here to see answer by jim_thompson5910(35256)

Question 1090871: When solving linear equations, there are 3 possible scenarios. You can have one solution, no solutions or infinite solutions. Explain in full detail how each of the 3 scenarios can occur. Use examples for each scenario to justify your answer.
Click here to see answer by ikleyn(52781)

Question 1090881: How to write the equation in slope intercept form of the line that has a slope of 2 and contains the point (4,2)

Click here to see answer by Alan3354(69443)

Question 1090924: How do you write an equation of the line containing the given point and parallel to (2,-1) 6x-7y=8. How do you find what y is equal to?
Click here to see answer by MathLover1(20849)

Question 1091311: What is the substitution and elimination of y-4=2x and 4x+8=2y?
And also a graph of the answer.
Click here to see answer by Alan3354(69443)

Question 1091309: What is the substitution and elemination of y= -2x-6 and 4x+2y=8? And also a graph of the answer?
Click here to see answer by Alan3354(69443)

Question 1091366: (3x-6y)2

Click here to see answer by ikleyn(52781)

Question 1091412: Which equation is of a line that passes through (2, -2) and (0, 2)?

Click here to see answer by math_helper(2461)

Question 1091412: Which equation is of a line that passes through (2, -2) and (0, 2)?

Click here to see answer by MathTherapy(10552)

Question 1091478: A farmer has 60 m of wire fencing which he uses to make a rectangular pen for his sheep. He uses a stone wall as one side of the pen so the wire is used for only 3 sides of the pen.
1) If the width of the pen is x cm, what is the length (in terms of x)?
2) What is the area A of the pen?
3) Draw a graph with area A on the vertical axis and the width x on the horizontal axis. Take values of x from 0 to 30.
Thank you so much if you choose to solve this!
4) What dimensions should the pen have if the farmer wants to enclose the largest possible area?
Click here to see answer by ikleyn(52781)

Question 1091444: A chemist measured the pressure of a gas in atmospheres at different temperatures in C. Graph data. Pressure (atm) 0.50 0.91 1.00 1.09 1.37 2.00 Temp (C) -75 -25 0 25 100 273
Click here to see answer by ikleyn(52781)

Question 1091578: A student takes a true-false examination which contain of 10 questions.The student knows nothing about the subject and chooses answers at random.assuming independence between questions and probability of .9 of answering any question correctly,what is the probability that the student will pass the test(assume that passing means getting seven or more correct)? If the test contains 20 questions, the probability of passing change(14 or more correct)? plzzzzzzzzzz send complet solution

Click here to see answer by Theo(13342)

Question 1091581: 3/4x-3y=1 Find the X and Y intercept
Click here to see answer by MathLover1(20849)

Question 1091628: A container has 42 litre of mixture consisting of milk and water in the ratio of 5:2 how much more water should be added to the ratio becomes 2:1.
Click here to see answer by josgarithmetic(39617)

Question 1091625: A work was assigned to 36 men and boys and were paid in all RS.4,150 if men got Rs.125 each and boys got rs.100 each find the number of men and boys.
Click here to see answer by josgarithmetic(39617)

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, 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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, 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