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

Tutors Answer Your Questions about Linear-equations (FREE) Get help from our free tutors ===> Algebra.Com stats: 2031 tutors, 423858 problems solved View all solved problems on Linear-equations -- maybe yours has been solved already! Become a registered tutor (FREE) to answer students' questions. If you need immediate math help from PAID TUTORS right now, click here. (paid link) Click here to see problems AND answers on one page Question 95077: I do not fully understand the average rate of change. My book does not show an example of this question on how to proceed. Find the average rate of change of the function from x1 to x2: f(x)=5x+7 from x1=-1 to x2=0 Thank you Click here to see answer by tutorcecilia(2152)   Question 95076: I need help finding out why I got this problem wrong: Determine the slope and the y intercept of the graph of the equation:y+9=0. These were my choices: m= 0: no y intercept -9:(0,0) 1;(0,-9) 0;(0, -9) I am gong according to my book and this is what I did: y+9=0 y=0-9 y=-9 m=-9;(0,0) Click here to see answer by checkley71(8403)   Question 95076: I need help finding out why I got this problem wrong: Determine the slope and the y intercept of the graph of the equation:y+9=0. These were my choices: m= 0: no y intercept -9:(0,0) 1;(0,-9) 0;(0, -9) I am gong according to my book and this is what I did: y+9=0 y=0-9 y=-9 m=-9;(0,0) Click here to see answer by tutorcecilia(2152)   Question 95041: Please help: A backyard has dimensions 3 4/5yards by 1 1/2yards. What is the area of the backyard in square yards (yd2)? Click here to see answer by checkley71(8403)   Question 95044: Please help: A principal of 5000 was invested in a savings account for 4 years. If the intrest earned for the period was $400.,what was the intrest rate? Click here to see answer by tutorcecilia(2152)   Question 95043: Please help: The daily low temperatures in degrees Fahrenheit for a certain week were -3,1,4,-5,-10. What is the range of low temperatures for that week? Click here to see answer by edjones(7569)   Question 95220: I am in pre-cal, but none of my previous classes mentioned general form, and my book doesn't say how to get it from any two points not intercepts. Help? Please? The points for the problem are (-8,1) and (-8,7). Click here to see answer by scott8148(6628)   Question 95220: I am in pre-cal, but none of my previous classes mentioned general form, and my book doesn't say how to get it from any two points not intercepts. Help? Please? The points for the problem are (-8,1) and (-8,7). Click here to see answer by edjones(7569)   Question 95220: I am in pre-cal, but none of my previous classes mentioned general form, and my book doesn't say how to get it from any two points not intercepts. Help? Please? The points for the problem are (-8,1) and (-8,7). Click here to see answer by chitra(359)   Question 95252: Determine which two equations represent parallel lines. a: y=-4x+4 b: y=4x+4 c: y=1/4x +4 d:y= -4x+8 Click here to see answer by checkley71(8403)   Question 95225: I have to write an equation for a line that is a)parallel to 4x-2y=3 that goes through the Point (2,1) and b) perpendicular to 4x-2y=3 and goes through said point, and both have to be in general form, but I have no idea how to do anything in general form - my previous math classes didn't go over it, and my current one thinks that everyone knows how to do it. Please help?! Click here to see answer by scott8148(6628)   Question 95263: Click here to see answer by ionesco(12)   Question 95288: Determine an equation in the form y=mx+b of a line satisfying the given condition: throught the point (-5,-5) and parallel to the line 5y-2x=5 Click here to see answer by checkley71(8403)   Question 95286: Determine an equation in the form y=mx+b of a line satisfying the given condition: throught the points (5,-1) and (3,0) Click here to see answer by checkley71(8403)   Question 95285: Graph the equation y = x - 5 on a coordinate plane Click here to see answer by checkley71(8403)   Question 95340: write an equation in slope- intercept form for the line that contains the point (2,5) and is perpendicular to the line 6x+2y=24 Click here to see answer by jim_thompson5910(28715)   Question 92584: Graph the absolute value inequalities: |x+2y|>6 Click here to see answer by Edwin McCravy(8999)   Question 94457: A rectangle has sides of 3x-4 and 7x+10. Find the expression that represents its perimeter. Click here to see answer by kiljoy(51)   Question 95508: Properties of exponents apply to which of the following operations? i know that it is between addition, subtraction, multiplication and division it is possible that it can be all of them or just 2 or 3 but i don't know for sure thank you Click here to see answer by stanbon(57967)   Question 95507: I NEED MORE SPECIFICS ON HOW TO FIND THE DOMAIN AND RANGE OF THE FOLLOWING FUNCTION: f(x)=2x-1 Click here to see answer by stanbon(57967)   Question 95472: 3y/2+y/6=10/3 solve the linear equation? Click here to see answer by stanbon(57967)   Question 95472: 3y/2+y/6=10/3 solve the linear equation? Click here to see answer by edjones(7569)   Question 95472: 3y/2+y/6=10/3 solve the linear equation? Click here to see answer by jayanthihemkos@yahoo.com(87)   Question 94620: If the perimeter of a rectangle is 26ft and the width is 9ft, find its length. [Hint:The perimeter of a rectangle is givenby P=2L+2W.] Click here to see answer by kiljoy(51)   Question 95538: vertical through (-6,5) find an equation in slope intercept form where possible Click here to see answer by stanbon(57967)   Question 95557: How would I find the x intercept in the following equation: x^2-2x=1? Click here to see answer by stanbon(57967)   Question 95594: f (x)  x2  7x 10; find (a) f (0), (b) f (5), and (c) f (2). Click here to see answer by stanbon(57967)   Question 95364: 3/x+1/y=1 2/x+5/y=18 Click here to see answer by kiljoy(51)   Question 95364: 3/x+1/y=1 2/x+5/y=18 Click here to see answer by edjones(7569)   Question 95643: Susan purchased municipal bonds which yield 7% annually and certificates of deposit which yield 8% annually. If Susan's initial investment amounts to $18,000 and the annual income is $1380, how much money is invested in bonds and how much is invested in certificates of deposit? Click here to see answer by checkley71(8403)   Question 95792: Can you help me solve this problem? Click here to see answer by stanbon(57967)   Question 95786: Are line L, through (6,1) and (9,7) and L2 through (-9,8) and (10,9) parallel or do they intersect? Click here to see answer by Edwin McCravy(8999)   Question 95784: Find the slope and y-intercept of the equation; y= -1/3x -5 Click here to see answer by elima(1433)   Question 95783: Find the slope and y-intercept of the equation; 5x + 4y = 20 Click here to see answer by elima(1433)   Question 95785: Write the equation of a line with slope -2/3 and y-intercept (0,-2) Click here to see answer by elima(1433)   Question 95787: Are lines L1 through (-2,1) and (0,3) and L2 through points (3,2) and (5,0) perpendicular? Click here to see answer by elima(1433)   Question 95880: Find the slope-intercept form of the equation of the line passing through the point (2,-1) and 1. perpendicular 2. parellel to the line -4x+2y=7? Thanks in advance. Click here to see answer by checkley71(8403)   Question 95862: can u help me find the equations in slope intercept form for the line that contains the given point is(a)paralleland(b)perpendicularto the given line. Click here to see answer by ankor@dixie-net.com(15746)   Question 95925: 4(2x - 3) = 3 + 8x - 11 Solve the equation Click here to see answer by checkley71(8403)   Question 95951: Solve the equation: (7/(2x+1))-(8x/(2x-1))=-4 I'm really bad at the equations with fractions! :) Click here to see answer by bucky(2189)   Question 95952: Find all solutions algebraically for the equation: (square root of x-10)-4=0 Click here to see answer by bucky(2189)   Question 96004: -x+4-9x+3_>7(x-2) solve for x collect xs on the Left side. The solution should be presented with x first the correct inequality symbol then the number. Click here to see answer by tutorcecilia(2152)   Question 95974: Graph each of the following equations by first solving for y. 2x - 3y = 12 Click here to see answer by elima(1433)   Question 96005: y=-7x-4 x y -2 -1 0 1 2 Click here to see answer by elima(1433)   Question 96034: Write an equation of a line that passes through the x-intercept 4 with a slope of 2. Click here to see answer by edjones(7569)

---

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