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

Tutors Answer Your Questions about Linear-equations (FREE)

Question 118489: Are the lines y=3x+5 and y=2x+5 parallel, perpendicular, or neither? Explain.
Click here to see answer by stanbon(75887)

Question 118519: 3x-4y=5
-4x+2y=6
Click here to see answer by jim_thompson5910(35256)

Question 118518: 3x+4y=12
1x+4/3y=4
Click here to see answer by jim_thompson5910(35256)

Question 118630: 0x+-19=-19

Click here to see answer by jim_thompson5910(35256)

Question 118656: if you have 3x+6y=27 how would you solve or y in slope intercept form
Click here to see answer by ankor@dixie-net.com(22740)

Question 118656: if you have 3x+6y=27 how would you solve or y in slope intercept form
Click here to see answer by checkley71(8403)

Question 118695: Several points are plotted on a graph. For Each point, the x-coordinate is the length of a side of a square while the y-coordinate is the perimeter of that same square. One such point is (2,8) since a sqaure with side length 2 units has a perimeter of 8 units. What is the slope of the line connecting the points? Express your answer in simplest form.
thanks
Click here to see answer by MathLover1(20849)

Question 118706: In 1980 the average price of a home in Brainerd County was $100,000. By 1986 the average price of a home was $112.00[112,000].
Write a linear model for the price of a home,p,in Brainerd County in terms of the year,t. let t=0 correspond to 1980.
[a] p =12,00t+100,000
[b] p=2,000t=112,000
[c] P=-2,000t=100,000
[d] P=2,000t+100,000
I think the answer is b or c but im not quite sure I take really good notes in class but I dont have this kind of problem in my note book.
thanks alot.

Click here to see answer by m.hansen(16)

Question 118702: My brain is on shut down from all my equations and this problem has me lost. Help Please!! Angela
Solve the following system of linear inequalities by graphing.
x � y <= 3 x + 2y <=6

Click here to see answer by ankor@dixie-net.com(22740)

Question 118738: In a standard xy-coordinate system,the graph of the equation y = -3x + 8 is
Thanking you
Click here to see answer by jim_thompson5910(35256)

Question 118701: My brain is on shut down from all my equations and this problem has me lost. Help Please!! Angela
Solve the following system of linear inequalities by graphing.
x � y <= 3 x + 2y ,=6

Click here to see answer by jim_thompson5910(35256)

Question 118730: Hello,
Please help me with this problem ___ What are the points that lie on the line 2x + 3y + 5 = 0
Thanking you
Click here to see answer by checkley71(8403)

Question 118760: find the slope and y-intercept of the line y=6x-13. Is the line parallel to y=-6x-12?
Click here to see answer by jim_thompson5910(35256)

Question 118770: Model each situation with a linear function and graph. Is it reasonable to include negative numbers in the range?
1.The weight of a bucket of golfballs is a function of the number of balls, each of which weighs 1.6 oz. The bucket itself weighs 2 lb.
2.It costs a farmer a $110 to bring 150 pounds of tomatoes to market, and the tomatoes sell for $2 per pound. The difference between the income from sales and the cost is the farmer's profit.
I'm sorry for asking so much. But my teacher told us to do our best, yet my best isnt good enough. Thanks sooo much! I Hope you answer soon!
Click here to see answer by ankor@dixie-net.com(22740)

Question 118781: find the slope and y-intercept of the line represented by the following equation.
2x-3y=6
Click here to see answer by checkley71(8403)

Question 118793: Write the equation of the line passing through each of the given pairs of points. Write your result in slope-intercept form, where possible.
(2,-3) and (2,4)
Click here to see answer by jim_thompson5910(35256)

Question 118792: Write the equation of the line passing throught each of the given pairs of points. Write your result in slope-intercept form, where possible.
(-1,3 and (4,-2)
Click here to see answer by jim_thompson5910(35256)

Question 118791: Write the equation of the line passing through each of the given points with the indicated slope. give your results in slope-intercept form, where possible.
(0,5), m= -3/5
Click here to see answer by jim_thompson5910(35256)

Question 118785: write the equation of the line with given slope and y-intercept. Then graph each line using the slope and y-intercept.
slope: -3/4; y-intercept: (0,8)
Click here to see answer by jim_thompson5910(35256)

Question 118794: write the equation of the line L satisfying the given geometric conditions.
L has y-intercept (0,-3) and is parallel to the line with equation y = 2/3x + 1
L has y-intercept (0,2) and is perpendicualr to the line with equation 2x - 3y =6
Click here to see answer by jim_thompson5910(35256)

Question 118788: FIND THE SLOPE OF ANY LINE PERPENDICULAR TO THE LINE THROUGHT POINTS (0,5) AND (-3, -4)
Click here to see answer by jim_thompson5910(35256)

Question 118783: write the equation of the line with given slope and y-intercept. Then graph each line using the slope and y-intercept.
slope: 5; y-intercept: (0,-2)
Click here to see answer by jim_thompson5910(35256)

Question 118782: write the equation of the line with given slope and y-intercept. then graph each line using the slope and y-intercept
slope -2; y-intercept: (0,4)
Click here to see answer by HyperBrain(694)

Question 118790: Floor plans for a building have the four corners of a room located at the points (2,3), (11,6), (-3,18) and (8,21).
For the floor plans given above, determine whether the side throught he points (2,3) and (11,6) is perpendicualr to the side throught he points (2,3) and (-3,18).
Click here to see answer by checkley71(8403)

Question 116649: Graph the following solutions.
y=3/4x+3

Click here to see answer by HyperBrain(694)

Question 114107: In the form of y=mx+b
Graph y=3x-4
Click here to see answer by HyperBrain(694)

Question 118890: I HAVE NOW HAD PRACTICE SOLVING EQUATIONS WITH ONE VARIABLE AND EQUATIONS WITH TWO VARIABLES. Comparing equations with one variable to equations with two variables. How are they alike? How are they different? and what if an equation had three variables?
Click here to see answer by MathLover1(20849)

Question 119020: A line passses through (1, -5) and (-3,7).
a. Write an equation for the line in point slope form
b. Rewrite the equation in slope-intersept form
Click here to see answer by jim_thompson5910(35256)

Question 119045: Write and equation on the line shown? y=(0,-2) and x =(1,0)
Click here to see answer by checkley71(8403)

Question 119045: Write and equation on the line shown? y=(0,-2) and x =(1,0)
Click here to see answer by chitra(359)

Question 119074: write an equation of a line that contains the given point and is perpendicular to the given line
2x + 4y = -7 ; (-3, -2)

Click here to see answer by jim_thompson5910(35256)

Question 119073: write an equation of a line that contains the given point and is perpendicular to the given line
2x + 4y = -7 ; (-3, -2)

Click here to see answer by chitra(359)

Question 116691: find the slope and y-intercept of the graph of each equation.
1. x = 2y - 7
2. y = 1/4x + 3
Click here to see answer by HyperBrain(694)

Question 116001: find the x & Y intercepts
X + 3Y = -3
Click here to see answer by HyperBrain(694)

Question 115972: What is the ordered pair of -5x+y=19,x-7y=3?
Click here to see answer by HyperBrain(694)

Question 115695: parallel to the line 5x-6y=-1; x-intercept=4
Click here to see answer by HyperBrain(694)

Question 118844: This is a worksheet so i cant fill out the top.
model each situation with a linear function and graph. is it reasonable to include negative numbers in the range?
1. a newly-started high school hopes to enroll 80 students in its first year and to increase enrollment by 40 students per eyar over the next five years.
5. temperature on the Fahrenheit scale is a linear function of temperature on the Celsius scale. Ten degrees Celsius equals 50 degrees Fahrenheit, and 25 degrees Celsius equals 77 degrees Fahrenheit.
(the temperature one really confuses me.)
Thanks for taking your time on reading this!
Click here to see answer by ankor@dixie-net.com(22740)

Question 119175: y=Mx + b
7x + 8y = 12
-7 -7
8y/8=12/8-7x/8
y=-7x+4
Click here to see answer by jim_thompson5910(35256)

Question 119209: How do you graph x = 2
Click here to see answer by solver91311(24713)

Question 119354: Find the slope of the line through each pair of points

2/3, 4/7 and 2/3, 11/7
Click here to see answer by checkley71(8403)

Question 119421: how to write an equation in slope intercept form in graph
Click here to see answer by heidi(17)

Question 119420: how to write an equation in slope intercept form in graph
Click here to see answer by heidi_1_1(5)

Question 119501: Find the slope and y-intercept.
-4x + 5y = 25
Click here to see answer by jim_thompson5910(35256)

Question 119522: a line with slope 305and y-intercept (0,4)

9
Click here to see answer by jim_thompson5910(35256)

Question 119655:

what is the answer of x(x+3)+2(6x-5)=10?

Click here to see answer by checkley71(8403)

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, 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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, 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