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

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Question 353523: Find numerical values for all simultaneous solutions of:
X^2+3y^2=27
xy=6
and illustrate with a graph
Click here to see answer by robertb(5830)

Question 353525: graph the fuction f(x)=|x+1|+|x-1|.show the steps, please, thanks.
Click here to see answer by Fombitz(32388)

Question 353527: Sketch a complete graph of the relation
x^2+2x-2y^2-8y=8
Click here to see answer by Fombitz(32388)

Question 353602: Can someone please explain to me how to get the answer to this problem?
Find y if the line through (1,y) and (7,3) has a slope of 6
Thank you
Click here to see answer by Fombitz(32388)

Question 353366: write the equation of a line that is perpendicular to y=-2x+6 and passes through (-4,7)
Click here to see answer by Fombitz(32388)

Question 353614: Hello,
I do not understand how to solve mutiplyins fractions with varibles. I am stuck on this one problem, it is -3x/4=9/2 and I am not sure how to solve it Can you please help me learn how to solve these kinds of problems?
Click here to see answer by sofiyac(983)

Question 352768: 120x-360y=720
Click here to see answer by sofiyac(983)

Question 353622: Please solve:
4x(2x+1)-x(x+3) when x=2
Click here to see answer by sofiyac(983)

Question 353128: x <-1
__ ___
2 3
Click here to see answer by Fombitz(32388)

Question 353664: Solve for r
F=mv2
____
r
Click here to see answer by Fombitz(32388)

Question 353495:
Click here to see answer by checkley77(12844)

Question 353725: I need help finding the slope and y-intercept for the equation 8x-3y=6
Click here to see answer by rfer(16322)

Question 353759: given the function k described by k(y+11)=
Click here to see answer by Fombitz(32388)

Question 353758: k(y+11)
Click here to see answer by unlockmath(1688)

Question 353871: Please solve:
3(x-2)=20-5(x+2)
Click here to see answer by nerdybill(7384)

Question 353911: Please solve the simultaneous equation:
x/2+y/5=4
x/4+y/2=6

Click here to see answer by ewatrrr(24785)

Question 353909: im really good with numbers and algebra... but i suck at graphing equations and linear equations.
can any one please help me with the graphing
thanks.
Click here to see answer by rfer(16322)

Question 353908: Please solve:

x+4/3 + x+6/5=2
Click here to see answer by rfer(16322)

Question 353988: Find the y-intercept and x-intercept
-8x +y = 12
Click here to see answer by jim_thompson5910(35256)

Question 353988: Find the y-intercept and x-intercept
-8x +y = 12
Click here to see answer by rfer(16322)

Question 354054: graph the function f(x)=-5x
Click here to see answer by Fombitz(32388)

Question 354060: graph the function by plotting points f(x)=1/4x+9
Click here to see answer by sofiyac(983)

Question 354213: I can't figure out this problem. So it says:
y=-3x+5
Then it asks which of the following ordered pairs goes on this graph?
(9, -2)
(-5, 18)
(1, -6)
(-4, -9)
I have tried it a million times but get one to work.
Click here to see answer by blwinbbbles(106)

Question 354224: How do I write the equation of a line in slope-intercept form/standard form containing points (4,-1)(-2,-13)?
Click here to see answer by rfer(16322)

Question 354225: How do I write the equation of a line in slope-intercept form and standard form containing point (5,1) and is perpendicular to y=5x-4?
Click here to see answer by nerdybill(7384)

Question 354245: Graph each inequality.
y<2x+2 and 2x<3y+6
Click here to see answer by ewatrrr(24785)

Question 354260: Write an equation in slope-intercept form for the line that satisfies the following condition.
passes through (9,-9), parallel to the graph of y= 20/3x+10
Click here to see answer by ewatrrr(24785)

Question 354264: (-10, -3) (-1, 1) in slope intercept form
Click here to see answer by ewatrrr(24785)

Question 354280: Write the slope-intercept equation of the line with m=-3/5and passing through(-4,-1) .
Click here to see answer by ewatrrr(24785)

Question 354308: Find the equation of the line through (2,a) and (4,b).
I have b-a/2 =m but then i'm stuck on finding b as in y=mx+b
thank you
Click here to see answer by Alan3354(69443)

Question 354387: 2R-13=28

Click here to see answer by rfer(16322)

Question 354397: an alloy of metals is 25% copper. Another alloy is 50% copper. How much of each alloy should be used to make 1000 grams of an alloy that is 45% copper?
Click here to see answer by Alan3354(69443)

Question 354369: ok, I have worked this problem 3 or 4 different ways and am not coming up with the answer in the back of the book. Instructions: find the slope of the line that passes through the two points. here are the points: (1/2,3/5) and (1/4,-4/5) My name is Kelly and my email is hotmominnixa@gmail.com. the answer in the book is 28/5. Thank you
Click here to see answer by Alan3354(69443)

Question 354401: the band is selling gift wrap. the gift wrap sold in solid colors for $4.00 and print for $6.00 per roll. The total number of rolls sold was 480, total amount of money was $2340. How many rolls of each kind were sold? I did trial and error and found that 165 of 4 and 280 of $6 = 2340 but I do not know how to solve the correct way?
Click here to see answer by scott8148(6628)

Question 354463: given problem m = 3/4 , (1,-2)
y-(-2) = 3/4(x-1)
i don't know how to correctly solve this
Click here to see answer by mananth(16946)

Question 354532: Solve the following system of equations
x1 + x2 + x3 = 6
3x1 � 4x2 � 2x3 = 1
3x1 � 2x2 + x3 = 2

Click here to see answer by Alan3354(69443)

Question 354742: 3x-y=1
2x+y=-1

Click here to see answer by checkley77(12844)

Question 354926: find the slope of the graph of the linear function "f". f(-3)=-9,f(3)=9
Click here to see answer by robertb(5830)

Question 354926: find the slope of the graph of the linear function "f". f(-3)=-9,f(3)=9
Click here to see answer by stanbon(75887)

Question 354964: state the slope of a line parallel to the line passing through the given points.
E(-1,2), F(5,0)
Click here to see answer by nyc_function(2741)

Question 354991: Graph the linear system and estimate the solution. Then check the solution algebraically.
y = 4x +3
20x - 5y = -15
I really don't understand how to do these types of problems. Could you please break it down step by step for me?
Click here to see answer by mananth(16946)

Question 355077: For each line, use the given conditions to write an equation in the point-slope form and the slope-intercept form.
Slope = 4, passing through (1, 3)
Slope = 8, passing through (4, �1)
Slope = �5, passing through (�4, �2)
Slope = �2, passing through (0, �3)

Click here to see answer by Alan3354(69443)

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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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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