Questions on Algebra: Graphs, graphing equations and inequalities answered by real tutors!

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Question 1093523: What is the equation of the line that passes through the points (-1,1) and (4,7)?
Click here to see answer by greenestamps(13200)

Question 1093517: If three points A, B, C in a plane have coordinates (-2,1), (1,6) and (8,1), respectively
the distance between A and B is..?
the distance between B and C is..?
the distance between A and C is..?
Click here to see answer by Alan3354(69443)

Question 1093522: What is the correct solution set for the inequality 3 < 33/12x-1 < 11?
Click here to see answer by Fombitz(32388)

Question 1093568: If three points A, B, C in a plane have coordinates (-2,1), (1,6) and (8,1), respectively the distance between A and C is..?
Click here to see answer by Alan3354(69443)

Question 1093567: If three points A, B, C in a plane have coordinates (-2,1), (1,6) and (8,1), respectively the distance between B and C is..?
Click here to see answer by Alan3354(69443)

Question 1093585: describe the difference between the endpoints ≤,≥ and <,>
Click here to see answer by ikleyn(52781)

Question 1093521: What is the correct solution set for the inequality 1/3 < 1/4x-1 < 1?
Click here to see answer by Boreal(15235)

Question 1093472: y=3x-1 and
y=4x
graph each of the following lines using its slope and y intercept

Click here to see answer by valvem2(1)

Question 1093472: y=3x-1 and
y=4x
graph each of the following lines using its slope and y intercept

Click here to see answer by ikleyn(52781)

Question 1093694: 2(5-2x)<=-20
Click here to see answer by rothauserc(4718)

Question 1093761: Please help with the following problem:
Compute 𝑥^3 − 2𝑥^2 + 3 when x=-2.
THANK YOU!
Click here to see answer by Alan3354(69443)

Question 1093760: Please help with the following problem:
The score S on a Math 012 test varies directly as the number of correct responses N. Jules answers 29 questions correctly and earns a score of 87. What would Jules� score have been if he had answered 25 questions correctly.
THANK YOU!
Click here to see answer by MathTherapy(10552)

Question 1093744: A satellite is in orbit around the moon. A coordinate plane containing the orbit is set up with the center of the moon at the origin, as shown in the following graph, with distances measured in megameters (Mm). The equation of the satellite's orbit is

(The first question is to use a graph to find the closest and furthest the orbit is from the center of the moon. The answers to this are
Closest: 2MM
Furthest: 8MM
There are two points in the orbit with y-coordinates 2. Find the x-coordinates of these points, and determine their distances to the center of the moon. (Round your answers to two decimal places.)

Please help me figure out how to find the x coordinates.
Click here to see answer by ankor@dixie-net.com(22740)

Question 1093807: Please help with this problem:Find the number such that five times the sum of the number and 2 is the same as three time the number, increased by 18.
Thanks!
Click here to see answer by MathTherapy(10552)

Question 1093808: Please help with this problem:How much money would you need to deposit today at 5% annual interest compounded monthly to have $20000 in the account after 9 years?
Thanks!
Click here to see answer by MathTherapy(10552)

Question 1093804: Please Help: Jules plans to put her graduation money into an account and leave it there for 4 years while he goes to college. He receives $1100 in graduation money that he puts it into an account that earns 3.75% interest compounded semi-annually. How much will be in Jules account at the end of four years?
Thank you!
Click here to see answer by ikleyn(52781)

Question 1093853: Can you please help with the following :
Simplify the expression. Use positive exponent only: (4𝑥^−1)^2(2𝑥^3)^3
Thanks
Click here to see answer by Theo(13342)

Question 1093852: Can you please help with the following problem, i am really struggling:
Multiply and simplify: (2𝑥^2 + 3𝑥 + 6)(6𝑥^2 + 𝑥 − 6)
Thanks
Click here to see answer by Alan3354(69443)

Question 1093806: Please help with the following:
Simplify the expression. Use positive exponent only: (4𝑥^−1)2(2𝑥^3)^3
Thank you!
Click here to see answer by Alan3354(69443)

Question 1093805: Please Help: The intensity of light (in foot-candle) varies inversely as the square of the distance (in feet) from the light source. The intensity of light 3 feet from the source is 72 foot-candles. How far away is the source if the intensity of light is 2 foot-candles.
Thank you!
Click here to see answer by ankor@dixie-net.com(22740)

Question 1093873: Please help, can't seem to find a solution:
The intensity of light (in foot-candle) varies inversely as the square of the distance (in feet) from the light source. The intensity of light 3 feet from the source is 72 foot-candles. How far away is the source if the intensity of light is 2 foot-candles
Thanks!
Click here to see answer by Alan3354(69443)

Question 1093871: Please help, can't seem to find a solution:
Jules plans to put her graduation money into an account and leave it there for 4 years while he goes to college. He receives $1100 in graduation money that he puts it into an account that earns 3.75% interest compounded semi-annually. How much will be in Jules account at the end of four years?
Thanks!
Click here to see answer by ikleyn(52781)

Question 1093897: Four is no less than the quotient of a number x and 2.1.

Click here to see answer by addingup(3677)

Question 1093902: Please help me find the slope and the y-intercept for this equation? x-y=9
Click here to see answer by stanbon(75887)

Question 1093912: The sum of the digits of a two-digit number is 11. The units digit is two more twice the tens digit. Find the number.
Click here to see answer by greenestamps(13200)

Question 1093912: The sum of the digits of a two-digit number is 11. The units digit is two more twice the tens digit. Find the number.
Click here to see answer by josgarithmetic(39617)

Question 1093908: I am stuck, my solution to this problem is 0 no solution, but I am sure. Can you please help me simplify the following expression:
simplify (5x^4 y^7 z^4.2x^5/ (x^4 y^3 z^2)^2)^3
Thank you!
Click here to see answer by Alan3354(69443)

Question 1093955: How do you graph (x/(x^2+4))? I don't know if the denominator has any vertical asymptotes or removable discontinuities since x would be imaginary.
Click here to see answer by josgarithmetic(39617)

Question 1093989: find the value of k such that the line through (k,-2) and (5,2) has a slope of 2/3.
Click here to see answer by ankor@dixie-net.com(22740)

Question 1094141: please help me solve this question: What are the intercepts of 5x+y=−5? Graph the equation.
Click here to see answer by addingup(3677)

Question 1094141: please help me solve this question: What are the intercepts of 5x+y=−5? Graph the equation.
Click here to see answer by richwmiller(17219)

Question 1094141: please help me solve this question: What are the intercepts of 5x+y=−5? Graph the equation.
Click here to see answer by MathTherapy(10552)

Question 1094141: please help me solve this question: What are the intercepts of 5x+y=−5? Graph the equation.
Click here to see answer by josgarithmetic(39617)

Question 1094141: please help me solve this question: What are the intercepts of 5x+y=−5? Graph the equation.
Click here to see answer by Alan3354(69443)

Question 1094188: 3x-y=1 domain -3 -1 0 4
Click here to see answer by greenestamps(13200)

Question 1094222: Solve the absolute value inequality. Write interval notation for the solution set.
[7-5x]greater than or equal to 15
Click here to see answer by ikleyn(52781)

Question 1094274: Graph the line y=6 show me the steps as well
Click here to see answer by Alan3354(69443)

Question 1094394: -4x+3y=3, how do I graph this problem?
Click here to see answer by josgarithmetic(39617)

Question 1094394: -4x+3y=3, how do I graph this problem?
Click here to see answer by MathTherapy(10552)

Question 1094657: Please help me solve the following:
Solve for x: 5𝑥^3 + 5𝑥^2 − 30𝑥 = 0
Thank you!
Click here to see answer by MathTherapy(10552)

Question 1094660: Please help me solve the following:
Factor: 𝑥^2 + 3𝑥𝑦 + 2𝑦^2

Thank you!
Click here to see answer by josgarithmetic(39617)

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, 3871..3915, 3916..3960, 3961..4005, 4006..4050, 4051..4095, 4096..4140, 4141..4185, 4186..4230, 4231..4275, 4276..4320, 4321..4365, 4366..4410, 4411..4455, 4456..4500, 4501..4545, 4546..4590, 4591..4635, 4636..4680, 4681..4725, 4726..4770, 4771..4815, 4816..4860, 4861..4905, 4906..4950, 4951..4995, 4996..5040, 5041..5085, 5086..5130, 5131..5175, 5176..5220, 5221..5265, 5266..5310, 5311..5355, 5356..5400, 5401..5445, 5446..5490, 5491..5535, 5536..5580, 5581..5625, 5626..5670, 5671..5715, 5716..5760, 5761..5805, 5806..5850, 5851..5895, 5896..5940, 5941..5985, 5986..6030, 6031..6075, 6076..6120, 6121..6165, 6166..6210, 6211..6255, 6256..6300, 6301..6345, 6346..6390, 6391..6435, 6436..6480, 6481..6525, 6526..6570, 6571..6615, 6616..6660, 6661..6705, 6706..6750, 6751..6795, 6796..6840, 6841..6885, 6886..6930, 6931..6975, 6976..7020, 7021..7065, 7066..7110, 7111..7155, 7156..7200, 7201..7245, 7246..7290, 7291..7335, 7336..7380, 7381..7425, 7426..7470, 7471..7515, 7516..7560, 7561..7605, 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, 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, 17551..17595, 17596..17640, 17641..17685, 17686..17730, 17731..17775, 17776..17820, 17821..17865, 17866..17910, 17911..17955, 17956..18000, 18001..18045, 18046..18090, 18091..18135, 18136..18180, 18181..18225, 18226..18270, 18271..18315, 18316..18360, 18361..18405, 18406..18450, 18451..18495, 18496..18540, 18541..18585, 18586..18630, 18631..18675, 18676..18720, 18721..18765, 18766..18810, 18811..18855, 18856..18900, 18901..18945, 18946..18990, 18991..19035, 19036..19080, 19081..19125, 19126..19170, 19171..19215, 19216..19260, 19261..19305, 19306..19350, 19351..19395, 19396..19440, 19441..19485, 19486..19530, 19531..19575, 19576..19620, 19621..19665, 19666..19710, 19711..19755, 19756..19800, 19801..19845, 19846..19890, 19891..19935, 19936..19980, 19981..20025, 20026..20070, 20071..20115, 20116..20160, 20161..20205, 20206..20250, 20251..20295, 20296..20340, 20341..20385, 20386..20430, 20431..20475, 20476..20520, 20521..20565, 20566..20610, 20611..20655, 20656..20700, 20701..20745, 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