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

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Question 149952: Graph the function on paper f(x)=2-|x|
Click here to see answer by Fombitz(32388)

Question 150038: Choose the ordered pair that is a solution to the system of equations.
-x + y = 12
x + 2y = 3
a. (7, 5)
b. (5, -7)
c. (-7, 5)
d. (-7, -5)
e. none of the above

Click here to see answer by stanbon(75887)

Question 150039: Choose the ordered pair that is a solution to the system of equations.
3x - y = 10
-x + y = -4
Click here to see answer by Fombitz(32388)

Question 150050: Find the slope of the line that contains the points (2.346, �0.215) and (4.492, �3.322). Round to the nearest thousandth.

Click here to see answer by Alan3354(69443)

Question 150049: Write the slope-intercept equation of the line l that goes through (12, 3) and has a slope of 1/3.

Click here to see answer by Alan3354(69443)

Question 150089: What is the equation of the line passing through the point (2,1) and perpendicular to the line with the equation 3x-6y=1?
Click here to see answer by Alan3354(69443)

Question 150110: 3x-4y=1
2x-5y=3
Click here to see answer by stanbon(75887)

Question 150130: If line L1 and L2 are perpendicular, and L1 has a slope of 3, what is the slope of L2?
I have to answer this question for a worksheet, and i dont understand the question, nor how to do the problem.
Shouldnt it tell me more numbers than just the slope of 1 line?
I dont understand this.
Can somebody please help me?
Thank you So much,
KKG.
Click here to see answer by nerdybill(7384)

Question 150109: 2x+y=5
3x-y=3
Click here to see answer by Alan3354(69443)

Question 150193: Solve the following system of equations. If the system cannot be solved, state that it cannot be solved and explain why.
5x-2y=(-24)
-4y= -48-10x

Click here to see answer by checkley77(12844)

Question 150188: find the slope of the line 3x-2y=6
Click here to see answer by checkley77(12844)

Question 150191: find the equation of the line through (4,3) perpendicular to the line 3x+y=7.
Click here to see answer by nerdybill(7384)

Question 150196: can someone help me understand how to use the graphical method to solve each linear programming.
Maximize to subject: z = 2x + 4y
3x + 2y _< 12
5x + y _> 5
x_>0
y_>0

Click here to see answer by stanbon(75887)

Question 150192: Solve the following system of equations. If the system cannot be solved, state that it cannot be solved and explain why.
3x-2y=4
2x-5y=21

Click here to see answer by Alan3354(69443)

Question 150273: Find the slope,x intercept and y- intercept for the equation then graph equation. -3x-6y=6
Click here to see answer by mangopeeler07(462)

Question 150289: Choose the ordered pair that is a solution to the system of equations.
2x � y = 4
3x + y = 1

Click here to see answer by Fombitz(32388)

Question 150343: mam/ser,
please help me to take an advantage about parallel and perpendicular lines..this is my question..
what is the shortcut methods of the parallel and perpendicular equation?
i hope you must response...
arvy rose juganas
Click here to see answer by ankor@dixie-net.com(22740)

Question 150346: wHAT IS THE LINEAR EQUATION ANSWER FOR 7x+2y=o, and I have to graph it by corridinate like
x y
0,0
1,1
2,2 and it have to make a straghit line thanks u
Click here to see answer by mangopeeler07(462)

Question 150287: Choose the ordered pair that is a solution to the system of equations.
-3x + y = -4
3x + y = -4

Click here to see answer by mangopeeler07(462)

Question 150286: Choose the ordered pair that is a solution to the system of equations.
3x - y = 9
2x + y = 6

Click here to see answer by mangopeeler07(462)

Question 150290: Show all your work
Solve the system of equations using the Addition method.
2a + 3b = -1
3a + 5b = -2

Click here to see answer by mangopeeler07(462)

Question 150538: I was wondering if someone could explain how to shade linear equalities when you graph them. I know how to graph, I'm just confused on where to shade.
3y + x > 4
Click here to see answer by jim_thompson5910(35256)

Question 150555: Find the equation (in standard form) of the line through (1, �7) and (4, �1).
Click here to see answer by jim_thompson5910(35256)

Question 150559: I'm supposed to put the following formulas in y=mx+b form. Then I'm supposed to plot the Y intercept. Then to get the 2nd point I need to plot the rise and run of the two formulas. Last I need to give the point at which the two lines intersect. When I try these steps, it's not coming out right on my graph.

Plot the intersect points of the two equations
2x + y = 4
3x - 4y = 6
Answer in book is (2,0)
When I change the equations I get the following;
y = -2x/1 -4
y = 3/4x - 6/4 (I divided equation by -4 to get this solution)

Plot the intersect points of the two equations
x + 3y = -6
x - 3y = 0
Answer in book is (-3,-1)
When I change the equations I get the following;
y = -1/3x - 2 (I divided equation by 3 to get this solution)
y = 1/3x + 0 (I divided equation by -3 to get this solution)

Plot the intersect points of the two equations
3x - 2y = -6
-6x + 4y = 9
Answer in book is No solution
When I change the equations I get the following;
y = 3/2x + 3 (I divided equation by -2 to get this solution)
y = 3/2x + 9/4 (I divided equation by 4 to get this solution)

Plot the intersect points of the two equations
x + 2y = 4
-2x - 4y = -8
Answer in book is Infinite
When I change the equations I get the following;
y = -1/2x + 2 (I divided equation by 2 to get this solution)
y = 1/-2x + 2 (I divided equation by -4 to get this solution)
Click here to see answer by jim_thompson5910(35256)

Question 150557: Determine whether the lines l1 and l2 are parallel, perpendicular, or neither.
Line l1 goes through (3, �8) and (�3, 9). Line l2 goes through (�1, �5) and (�7, 12).

Click here to see answer by jim_thompson5910(35256)

Question 150556: Find the slope of the line that contains the points (�4, �2) and (1,�2).
I got zero...not sure if I'm right
Click here to see answer by edjones(8007)

Question 150620: Line l goes throught the point (5,�2) and is perpendicular to the line through (�2, 1) and (�4, �2). Find the equation (in slope-intercept form) for l.
Click here to see answer by Earlsdon(6294)

Question 150633: Find the equation of the line that passes throught these two points (-12,-15) and (-16,-6). Write in Standard general form.
Click here to see answer by jim_thompson5910(35256)

Question 150666: solve equations let z be the parameter
5x + 3y + 4z=19
3x - y + z = -4
Click here to see answer by vleith(2983)

Question 150632: y=-13/4 X-13/10 Point: (-10.9) Write equation of a line that is perpendicular to the given line. Write in slope-intercept form.
Click here to see answer by Fombitz(32388)

Question 150761: What is this simplist form of this equation: 4-2d/d-2 divided by d/1
Click here to see answer by mangopeeler07(462)

Question 150758: solve this equation: x/x-5= -2x/x

please and thank you!
Click here to see answer by mangopeeler07(462)

Question 150791: What similarities and differences do you see between functions and linear equations? Are all linear equations functions? Is there an instance in which a linear equation is not a function? Support your answer. Create an equation of a nonlinear function and provide two inputs.

Click here to see answer by vleith(2983)

Question 150801: 3[7 - (7x - 4)] + 6x = 0
I completely forgot how to do problems like this. I know you start with the innermost (), but i don't know how to combine 7-(7x-4)
Click here to see answer by jim_thompson5910(35256)

Question 150749: y= -2-5.6 (3,2) 1,1)
Click here to see answer by Fombitz(32388)

Question 151046: Use the Substitution method to solve the system of equations.

Click here to see answer by checkley77(12844)

Question 151047: Use the Substitution method to solve the system of equations.
y - 2x = -5
3y - x = 5
Click here to see answer by checkley77(12844)

Question 151045: Use the Substitution method to solve the system of equations.
x + y = 10
y = x + 8

Click here to see answer by checkley77(12844)

Question 151044: Use the Substitution method to solve the system of equations.
x + y = -4
x - y = 2

Click here to see answer by checkley77(12844)

Question 151135: find the slope of th line parallel to the line 2x + 3y = -3
Click here to see answer by stanbon(75887)

Question 149864: Please help me give an example of an exponential function. Convert this exponential function to a logarithmic function. Plot the graph of both the functions. All of your help is appreciated
Click here to see answer by stanbon(75887)

Question 151140: find the slope of the line parallel to the line y= -3x+3
Click here to see answer by mducky2(62)

Question 151137: find the slope of the line parallel to the line -2x + y = 3
Click here to see answer by mducky2(62)

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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, 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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