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

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Question 976499: 22x - y =-23 find value of x
Click here to see answer by MathLover1(20849)

Question 976506: What is the equation of a line that passes through (-2,-1) and (-4, -3)
Click here to see answer by lwsshak3(11628)

Question 976506: What is the equation of a line that passes through (-2,-1) and (-4, -3)
Click here to see answer by stanbon(75887)

Question 976411: If (k,5) lies on the line with equation 3x-y=-8, find k
Click here to see answer by josgarithmetic(39617)

Question 976411: If (k,5) lies on the line with equation 3x-y=-8, find k
Click here to see answer by MathTherapy(10552)

Question 976519: Find the slope of the line, or state that it is not defined, for the x-axis.
Please solve, as I am lost.
Thank you.
Click here to see answer by MathLover1(20849)

Question 976566: Please help me solve this . If y=2x+1, at points (2,3) , what is the gradient of the equation?
Click here to see answer by josgarithmetic(39617)

Question 976646: graph 4x +3y = 9
Click here to see answer by Fombitz(32388)

Question 976724: Need help solving this problem. Please include steps on how to solve.
Thank you :)
Based on data from 1980 to 2005, the value of the dollar based on producer prices can be modeled by
V(t) = -0.00004785t^3 + 0.02314t^2 - 0.04774t + 1.137
where t is the number of years since 1980.�
Write the formula for P(t) given
P(t) = 10V(t)
P(t)=
What does the function P represent in this situation?
Click here to see answer by jim_thompson5910(35256)

Question 976755: The problem I need help on is how to graph 2x-3y>-6 . Iv seen a previous problem someone answered called 2x-3y>-6 and I followed the steps and it didn't seem to work right. I got the answer for the problem because its my summer homework but I need to show my work and iv tried so many ways to answer this. Thank you for your help, bye!

Click here to see answer by rothauserc(4718)

Question 976777: 9x+5y=15
3x-10y=20
Click here to see answer by Alan3354(69443)

Question 976764: Find an equation in the slope-intercept form for the line that passes through (2,3) with a slope of -3/8. y = __x + ___.
Thank you for your help.
Click here to see answer by Alan3354(69443)

Question 976762: Find the slope of the line passing through the given pair of points or state that it is not defined. (-4,1) and (-9,1).
Thank you. Please show steps.
Click here to see answer by Alan3354(69443)

Question 976924: 0.2x-2?
Click here to see answer by Cromlix(4381)

Question 976975: Hello!
What are the rational zeros of this function? Please explain each step.
f(x) = x^3 � 21x � 20
Thank you
Click here to see answer by lwsshak3(11628)

Question 976975: Hello!
What are the rational zeros of this function? Please explain each step.
f(x) = x^3 � 21x � 20
Thank you
Click here to see answer by rothauserc(4718)

Question 977010: Write the equation of a line parallel to the given line but passing through the given point
y=3/4 x-1;(4,0)
Write the equation of a line perpendicular to the given line but passing through the given point.
y= x +4; (-7,1)
Click here to see answer by josgarithmetic(39617)

Question 977062: What is the value of x in the equation 4x+8y=40 when y=0.8
Click here to see answer by xxLaurax(5)

Question 977064: x+y=a-b , ax-by=a2-b2

Click here to see answer by Fombitz(32388)

Question 977134: Identify the classification of the following systems of linear Equation:
{2x-4y+6z=5
{-x+3y-2z=-1
{x-2y+3z=1
Click here to see answer by anand429(138)

Question 977138: please help me solve this question y^2=mx + c
Click here to see answer by josgarithmetic(39617)

Question 977236: The equation of a line with slope m = -one fourth and including point (-3, 5) is y = -one fourth x - 4.
Would that be True or false?
Click here to see answer by josgarithmetic(39617)

Question 977335: setup a coordinate system on graph paper, then sketch the line passing through the
point P with the slope m.
P(−3,3), m = −3/4

Click here to see answer by lwsshak3(11628)

Question 977362: need steps on this algebra problem -7x+2=54-3
Click here to see answer by addingup(3677)

Question 977441: Find the slope of the line through the points (3, -7) and (-2, 5).
Click here to see answer by Alan3354(69443)

Question 977440: Given the line with equation 5x+2y=10:
a) Write the equation in slope-intercept form.
b) State the slope of the line.
c) State the y-intercept of the line as an ordered pair.
d) Use slope-intercept form to graph the line.
Click here to see answer by anand429(138)

Question 977443: Use the given conditions to write an equation for each line in point-slope form.
Passing through (2, -3) and perpendicular to the line whose equation is y = 1/5 x + 6.
Click here to see answer by Cromlix(4381)

Question 977445: A line parallel to the graph y-2=5
Click here to see answer by Alan3354(69443)

Question 977470: Need help on how to solve these problems. Please include steps on how to solve. Thank you.
A bathtub is being drained. Since it is an ordinary tub, it can be modeled by the function
V(t) = -15t + 45 where V(t) is the volume of the tub in gallons and t is the time that has passed in minutes. V(T) = -20T + 50 where v(T) is the volume of the tub in gallons and T is the time that has passed. Which tub will drain faster?
Based on the function V(t) = -15t + 45, when will the tub be half full?

Click here to see answer by Fombitz(32388)

Question 977467: Write an equation in general form of the line passing through (3, -5) whose slope is the negative reciprocal (the reciprocal with the opposite sign) of �1/4.
Click here to see answer by Fombitz(32388)

Question 977466: Write an equation in slope-intercept form of a linear function f whose graph satisfies the given conditions.
The graph of f is perpendicular to the line whose equation is 3x - 2y - 4 = 0 and has the same y-intercept as this line.
Click here to see answer by solver91311(24713)

Question 977558: Given a line with equation 6x-y=5. Write an equation in point-slope form of the line perpendicular to the given line through the point (2, -3).
Click here to see answer by Cromlix(4381)

Question 977557: a) Find the slope of the line through the points (3, -7) and (-2, 5).
b) Write in point-slope form, Y - Y₁= M ( X - X₁), the equation of the line through the two points given in part a.
c) Convert the equation that you wrote in part b to slope-intercept form, Y = MX + B.
Click here to see answer by Cromlix(4381)

Question 977666: Please write the equation in standard form and slope intercept form for the line described. Through (2,7) and parallel to y=-4
Click here to see answer by josgarithmetic(39617)

Question 977707: (2x^2-3x+8) / (x-2)
Click here to see answer by Edwin McCravy(20055)

Question 977716: Y>=x-5

Click here to see answer by Fombitz(32388)

Question 977760: 3x-4y=-1
Click here to see answer by Alan3354(69443)

Question 975760: Constraints:
50x+30y ≤ 2000
6x+5y ≤ 300
3x+5y ≤ 200

Click here to see answer by Fombitz(32388)

Question 977797: hello Can you please help me solve this equation in full detail? 1/8x - 10 = -16
I have been stuck on it all night
Thank you
Click here to see answer by rothauserc(4718)

Question 977844: I am a mom trying to help with a homework question.
My son is supposed to graph the following equation: 9-3/4x = y
Slope - intercept formula is y = mx + b
Is it as simple as -3/4 = slope and 9 = y intercept?
Thank you for your help. I have not done algebra in years.
Click here to see answer by josmiceli(19441)

Question 977830: Using elimination, what are the steps to figure out the unknowns in this linear equation:
3a+5b-c=47
2a-b+3c=-2
4a+b-2c=30
Click here to see answer by Cromlix(4381)

Question 977923: The sum of two digits of a two digit number is 15. If 9 is added to it, the digits are reversed. Find the number.
Click here to see answer by richwmiller(17219)

Question 977923: The sum of two digits of a two digit number is 15. If 9 is added to it, the digits are reversed. Find the number.
Click here to see answer by Boreal(15235)

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, 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, 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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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