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

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Question 920228: What is the equation of the line that passes through (-4,-1) that is PERPENDICULAR to the line that passes through the points (-2,-1) and (0,4) ?
Click here to see answer by ewatrrr(24785)

Question 920230: A line passes through the point (6,-5), and as the x increases by 1, the value of y decreases by 2. What is its equation?
Click here to see answer by ewatrrr(24785)

Question 920290: could you show me step by step how to figure this out Plz this is an example I don't want my homework done for me, I need to understand how to do it Thank you !
The problem is: Are the lines parallel,perpendicular or neither ? a) line 1: y=3x-5 line 2 : -3+12 or with something like line 1 : y=1/4x+1 and line 2 y=4x-5 any help would be great to get me to understand better what I am doing with this thank you
Click here to see answer by mananth(16946)

Question 920284: Please answer my question on constant and direct variation. The Mathematics Family travels 250 km to their friend's house. The distance, d, in kilometers, varies directly with time t, in hours. How long will it take The Mathematics Family to travel 250 km?
Click here to see answer by Alan3354(69443)

Question 920368: y>-3

Click here to see answer by jim_thompson5910(35256)

Question 920579: How many solutions does -14x+7y=21
-8x+4y=12 have?
Click here to see answer by stanbon(75887)

Question 920579: How many solutions does -14x+7y=21
-8x+4y=12 have?
Click here to see answer by Hawksfan(61)

Question 920577: How many solutions does -14x+7y=21
-8x+4y=12 have?
Click here to see answer by ewatrrr(24785)

Question 920586: In math were doing 7th grade combining like terms. On my homework I got stuck on a question is that said 3m^2-2m+4m. Can you help me solve it. Since I don't have an option to put an exponet on my keyboard ^2 means 2 to the second power of you were wondering what that was in my equation. Thank you. I tried to circle all the coffenent and solve 2m+4m then do 3m^2-6m.
Click here to see answer by richard1234(7193)

Question 920650: Find the equation of the line that contains the point (15, 5) and has a slope 2/5.
Click here to see answer by stanbon(75887)

Question 920652: find the slope of the line that passes through each pair of points
A(2,3), B(1,5)
Click here to see answer by MathLover1(20849)

Question 920652: find the slope of the line that passes through each pair of points
A(2,3), B(1,5)
Click here to see answer by stanbon(75887)

Question 920644: Find the slope of the lone containing the given points. p1 (3,-2) P2 (2,0)
Click here to see answer by stanbon(75887)

Question 920557: Our homework today is to find the X and Y intercept of equations and we went over it really fast at the end of class so i need help solving this:
Finding the X and Y intercepts of 8X-6Y=-24
Click here to see answer by ankor@dixie-net.com(22740)

Question 920955: For the following problem, the slope and one point on a line is given. Use the point-slope form to find the equation of that line. (Write your answer in slope-intercept form.)
(-3,-7) , m=2
y= ?
Click here to see answer by ewatrrr(24785)

Question 920956: For the following problem, the slope and one point on a line is given. Use the point-slope form to find the equation of that line. (Write your answer in slope-intercept form.
(-5,-2), m=0
y=
Click here to see answer by ewatrrr(24785)

Question 920957: Find the slope of a line perpendicular to the line that has x-intercept (3,0) and has y-intercept of (0,−2).
m=
Click here to see answer by josgarithmetic(39617)

Question 920959: For the following problem, the slope and one point on a line is given. Use the point-slope form to find the equation of that line. (Write your answer in slope-intercept form.)
(-1,-2) m=-2
Click here to see answer by MathLover1(20849)

Question 920962: Find the slope of a line perpendicular to the line that has x-intercept (3,0) and has y-intercept of (0,−2).
m= ?
**** I had got 2/3 the first time I tried , but the site that I'm doing my homework on keep telling me that's wrong. *****
Click here to see answer by ewatrrr(24785)

Question 920974: Find the x- and y- intercepts of the line y=-2x-2.
Click here to see answer by stanbon(75887)

Question 921168: Find the equation of the line that contains the point (-51, 13) and has slope -4/17.
Click here to see answer by josgarithmetic(39617)

Question 921006: Show that the equation of the line that passes through the points (0,b) and (-1,b-m) is y=mx+b. Explain how you can be sure that the point (-1,b-m) also lies on the line.
Click here to see answer by ewatrrr(24785)

Question 920977: Find the x- and y- intercept and then graph: y=-1/2x
Click here to see answer by ewatrrr(24785)

Question 920976: Find the x- and y- intercepts then graph: x + 3y=0
Click here to see answer by ewatrrr(24785)

Question 921167: Find the slope of the line containing the given points: P1 (0,0), P2(4, -3).
Click here to see answer by ewatrrr(24785)

Question 920967: Find the slope of the line containing the given points: P1 (0,0), P2(4,-3)
Click here to see answer by ewatrrr(24785)

Question 921242: 1.Construct a model to calculate profit:
A product costs $10 to produce and sells for $25

5. Add the constraint � It take 10 pounds of tin to make 1 product; You have 80 pounds of tin available (and solve for x)

6.Solve the Problem (calculate the profit)

Click here to see answer by stanbon(75887)

Question 921522: find the x and y intercepts for the graph of y=log(10-3x)
Click here to see answer by MathLover1(20849)

Question 921794: If the equation is B=2W+80 what is the slope and the y int
ercept
Click here to see answer by Alan3354(69443)

Question 921785: Instructions state: graph the equation. Tell whether the equation is a function.
Y=x--3
How do I set up this problem? Thank you.
Click here to see answer by Alan3354(69443)

Question 921821: Find the distance between these equations and give their x and y intercepts.
2x+3y=20
2x+3y=30
Click here to see answer by Theo(13342)

Question 921876: Graph the line with a slope 2/3 passing through the point (3,4).
Click here to see answer by Fombitz(32388)

Question 922021: Complete the equations of the system in slope-intercept form. Use a decimal for the slope if necessary.

Line 1
x y
0 3
1 5

Line 2
x y
�1 1
�2 �1

Line 1: y =_____ x +_____
Line 2: y = _____ x +_____

Click here to see answer by MathLover1(20849)

Question 922052: What is the slope of a line perpendicular to the line whose equation is 9x+3y=−36. Fully reduce your answer.
Click here to see answer by josgarithmetic(39617)

Question 126703: a molecule of propane has 26 atoms. if there are 6 fewer hygrogen atoms than 3 times the number of carbon atoms, how many atoms does it contain
Click here to see answer by 295(1)

Question 922165: What is the slope of (2, -2/5)?
Click here to see answer by josgarithmetic(39617)

Question 922422: For what values of m will the parabola defined by equation:
Y=(2m-6)x+(4-m)X2+11 open downward?

Click here to see answer by ewatrrr(24785)

Question 922400: For what value(s) of k will the lines
kx+5y=2 and 2x+(k+3)y=4 be:
a) parallel to each other? b)perpendicular to each other
Click here to see answer by ankor@dixie-net.com(22740)

Question 922472: I can't find an equation for the following ordered pairs (1,1), (2,5), (3,14), (4,30) etc. I know that I am adding the square of each x-value number to the previous y-value but I'm confused about the equation.
Click here to see answer by Edwin McCravy(20055)

Question 922632: Write the equation of the line that has y intercept 4 and is parallel to y = -2
Click here to see answer by jim_thompson5910(35256)

Question 922683: need to know the slope and y intercept of these two problems
1. y=-4 -x
2. x+y=12
please email me asap or at your earliest time my email is cstayfly2.cr@gmail.com

Click here to see answer by rfer(16322)

Question 922876: Let f(x)=x^2+3x and g(x)=4x-1, and find
a. (f*g)(0)
b. (g*f)(0)
c. (f*g)(x)
d. (g*f)(x)
Click here to see answer by MathLover1(20849)

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, 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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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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