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

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Question 516311: what is the equation of the line that contains the point (-1,-2) and is perpendicular to the line determined by 2x-3y=6?
Click here to see answer by mananth(16946) About Me 

Question 516363: write an equation in slope-intercept form for a line that passes through the given point and is parallel to the given line
y=5x;(2,-1)

Click here to see answer by Maths68(1474) About Me 

Question 516377: Not sure how to find the slope of the line joining (3, 12) and (15, -2)as a fraction in the simplest form.
Click here to see answer by Maths68(1474) About Me 

Question 516500: 6w+2=3w+4
Click here to see answer by deborabr(181) About Me 

Question 516569: solve using the elimination method. show your work if the system has no solution or an infinite number of solution state this
2x+3y=8
4x+6y=16

Click here to see answer by solver91311(24713) About Me 

Question 516687: Find the slope and the y-intercept of the line 8x=7y+56
Click here to see answer by rfer(16322) About Me 

Question 516710: what is the slope of a line parallel to the line whose equation is 3x+5y=8
Click here to see answer by mananth(16946) About Me 

Question 516759: How do you write and solve equations in slope-intercept form for the line that satisfies the following condition: Passes through (6,11) and is parallel to the line that passes through (2,4) and (23,23) ?
Click here to see answer by mananth(16946) About Me 

Question 516779: -x+2y=7
Click here to see answer by oberobic(2304) About Me 

Question 516823: what is (-1,-2) perpendicular to 2x + 3y = 0
Click here to see answer by Maths68(1474) About Me 

Question 516859: -7x+3y=52
15x+6y=-12
Please help! I am supposed to solve this by substitution, and I have no idea how to do it!

Click here to see answer by Maths68(1474) About Me 

Question 516793: Given the coordinates of point F as (5,50), find the equation of the line connecting points F and B.
Click here to see answer by richard1234(7193) About Me 

Question 517069: Describe how you would graph this line using the slope-intercept method. Be sure to write in complete sentences.

The slope is -2/3 The y intercept is -2
I am not for sure how to graph this can yo help me?

Click here to see answer by Alan3354(69443) About Me 

Question 517077: What can you conclude about the weight of someone who has consumed about 4 drinks in 1 hour without reaching BAC of 0.08%? His weight is 200 pounds.
Click here to see answer by Alan3354(69443) About Me 

Question 517230: Write and equation of the line that passes through each pair of points.
(-5/4,1) (-1/4,3/4)

Click here to see answer by stanbon(75887) About Me 

Question 517227: You have two tanks used to store water. A 50 gallon tank is empty and then is filled at a rate of 2 gallons per minute. At the exact same time, a 140 gallon tank starts out completely full and is being emptied at a rate of 5 gallons a minute. When will both tanks contain the same amount?
I do not know how to even set this problem up.
dillonlisa67@yahoo.com
Thank you so very much!

Click here to see answer by Edwin McCravy(20055) About Me 

Question 517450: (2,3) and (0,-7} equation y= How do I solve this problem?
Click here to see answer by richwmiller(17219) About Me 

Question 517597: I need help soving this problem, thanks.
Your company would like to know how sales levels affect profits. If too few items are sold, then there is a loss. Even if too many items are sold, however, the company can lose money (likely because of low pricing). It is good to know how many items can be sold for there to be profit.
Functions are very useful in many areas, such as in business to find the profit an organization is making. For example, the following function expresses profit in terms of the number of phones sold by a particular company:
P(x) = –x2 + 110x – 1,000
This function can be used to compute the profit (in thousands of dollars) from producing and selling a certain number, x, of thousands of smartphones.
a. Compute the following: P(5), P(50), and P(120). Then, interpret the results.
b. Graph the function using the desired graphing program. Paste the graph that you create into your assignment.
c. Discuss and interpret the meaning where the profit function crosses the x-axis. Refer to last week’s assignment concerning break-even points, and interpret the graph. Also, discuss where the graph is above and below the x-axis, explaining what that means in terms of profitability.

Click here to see answer by solver91311(24713) About Me 

Question 517642: find the x and y intercept and graph the equation plotting the intercepts. please show all work. -5x+8y=-40
Click here to see answer by lwsshak3(11628) About Me 

Question 517638: write the slope intercept equation for the line that passes through (6,-9)and has slope -7/6.
Click here to see answer by lwsshak3(11628) About Me 

Question 517625: Find an equation for the line through the point (−7,6) with x intercept 3. How do i do this problem?
Click here to see answer by lwsshak3(11628) About Me 

Question 517702: find the equation of line which is perpendicular to line y=5x+9 and has y-intercept=6
Click here to see answer by gc2000(22) About Me 

Question 517778: x/11-3=-16

Click here to see answer by deborabr(181) About Me 

Question 517759: I have two kids i need to get to school.Both start at 7:50. One takes the bus the other I drive to school. I need to take the first one early so i can make it back to my second to catch the bus on time by 7:30
Click here to see answer by richwmiller(17219) About Me 

Question 517921: Find the equation of the line with the given properties.
slope= 2/3, y-intercept of 9

Click here to see answer by Alan3354(69443) About Me 
Question 517921: Find the equation of the line with the given properties.
slope= 2/3, y-intercept of 9

Click here to see answer by solver91311(24713) About Me 

Question 517977: -2(3x-1)=4(3x-2)-x

Click here to see answer by xkatiexprime(4) About Me 
Question 517977: -2(3x-1)=4(3x-2)-x

Click here to see answer by rfer(16322) About Me 

Question 518023: m =8/3 ; (3, −4)
Click here to see answer by MathLover1(20849) About Me 

Question 518057: You have to find the slope of the line. Through (3,5), parallel to y= 5x -1
Click here to see answer by oberobic(2304) About Me 

Question 518074: How would I solve linear equation 2x-y= 0 and x-3= 0 for x and y-intercept
Click here to see answer by MathLover1(20849) About Me 

Question 518115: write an equation of a line parallel to x=3 and passes through (-3,5)
Click here to see answer by oberobic(2304) About Me 

Question 518168: Can you explain why the line y=4 is a vertical line?
Click here to see answer by josmiceli(19441) About Me 

Question 518124: -5|x-3|>15
Click here to see answer by jim_thompson5910(35256) About Me 

Question 518220: Find the vertex, x and y intercepts of the parabola given by the equation
y= 3x2-2x+1

Click here to see answer by josmiceli(19441) About Me 

Question 518206: Solve. -9y-12(2-3)=-25-2(y+6) Please show all of your work.
Click here to see answer by rfer(16322) About Me 

Question 518433: find the slope of a line through (-1,3) and (-3,7)
Click here to see answer by solver91311(24713) About Me 

Question 518467: if you cannot find a solution label the lines as parallel or coinciding and explain why y=3x-9 2x-y=6
Click here to see answer by rfer(16322) About Me 

Question 518469: What is the equation of a line that passes through the point (0, -3) and is perpendicular to a line with a slope of 4?
Click here to see answer by Gogonati(855) About Me 

Question 518434: write the equation in slope intercept form of a line with a slope of 1 which contains the point (2,4)
Click here to see answer by rfer(16322) About Me 

Question 518450: I'm not understanding how to find the slope and y intercept from this problem 4x-7y=3. I don't understand the steps involved to find the answer. Can I please get help?
Click here to see answer by Alan3354(69443) About Me 

Question 518730: I need help finding the variable while I have been given this (5,2) and (x,-2) m=2 m is the slope I am confused on what method to use should I use point slope formula? There is a line through the given points
Click here to see answer by mananth(16946) About Me 

Question 518804: (1,-4); y=-3x+pie
Find a parallel line.
(9,-1); y=7
Find a perpendicular line.
I have the answers, but I need to know the steps. Thank you!

Click here to see answer by stanbon(75887) About Me 

Question 518825: Write an equation for the line that is parallel to the given line and contains the given point. Write your answer in standard form with integer coefficients. 2x+3y=30; (2,-5)
Click here to see answer by mananth(16946) About Me 

Question 518866: Find equation of the line which is perpendicular to the line y=5x+9 and has y-intercept = 6
Click here to see answer by mananth(16946) About Me 

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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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, 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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