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

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Question 386384: want to solve y=-2-1/2x?
Click here to see answer by gwendolyn(128) About Me 

Question 386504: Sketch the graph of the following equation using slope-intercept form: 2y = 6 + 20x
Click here to see answer by ewatrrr(24785) About Me 

Question 386639: How do I graph x=2abs(y)-4
Click here to see answer by Fombitz(32388) About Me 

Question 386656: What is the slope of a straight line with the points (-2, 3) (3,3)?
Click here to see answer by Fombitz(32388) About Me 

Question 386626: Please help me solve the following problem:
The instructions read: List the given point and slope of y + 1 = 4/5 (x + 4)
I keep getting fractions that do not work when I place them back into the equation.
Thank you

Click here to see answer by stanbon(75887) About Me 

Question 386892: make a table for each equation. then graph the equation. write the equation alons its graph.
x+2y=8

Click here to see answer by rfer(16322) About Me 

Question 386898: My son needs help on his algebra homework and is now working the slope.
Y=-3x;(0,4)

Click here to see answer by rapaljer(4671) About Me 

Question 386875: {y-2x=0
{6y+2x=0

Click here to see answer by user_dude2008(1862) About Me 

Question 387262: what is y-3x<4
Click here to see answer by mananth(16946) About Me 

Question 387219: How do you graph equations with fractions?
Click here to see answer by richard1234(7193) About Me 

Question 387365: given the graph points of (2,3)(5,5)(8,8) Find the slope of each of the three line segments in the graph. Please show all of your work. Between which two points is the slope the smallest? HELP!!
Click here to see answer by josmiceli(19441) About Me 

Question 387473: Monday night football has a camera 40ft high on a goalpost. If Ted is 180ft from the goalpost, what is the angle of elevation from his feet to the camera? This is 9th grade algebra
Click here to see answer by stanbon(75887) About Me 

Question 387471: multiply 6060 by 5

Click here to see answer by rfer(16322) About Me 

Question 387552: Find the slope and the y-intercept of each line whose equation is given. m = −3; (−2,1) SOMEONE PLEASE HELP !!!!!!!!!!!
Click here to see answer by Theo(13342) About Me 

Question 387550: Find the slope and the y-intercept of each line whose equation is given. y=-3/8x+4 PLEASE HELP ME..!!!
Click here to see answer by Theo(13342) About Me 

Question 387624: Write the slope-intercept equation for the line that passes through (2, -7) and (4, -13). Please show all of your work.
Click here to see answer by rfer(16322) About Me 

Question 387625: Write the slope-intercept equation for the line that passes through (10, 12) and is perpendicular to 5x + 8y = 1 Please show all of your work.

Click here to see answer by nerdybill(7384) About Me 

Question 387721: Solve the system of equations by graphing.
Then classify the system.
X+y=7
X+y=-1

Click here to see answer by rapaljer(4671) About Me 

Question 387775: Graph the line.
2x + 3y = 9

Click here to see answer by ewatrrr(24785) About Me 

Question 387774: Graph the line.
3x - 2y = 6

Click here to see answer by ewatrrr(24785) About Me 

Question 387806: (1,5) and (3,13)

a) list 2 equations for parellel lines
b) find the eqaution of the perpendicular line
c) graph the perpindicular line

Click here to see answer by MathLover1(20849) About Me 

Question 387996: Rewrite the expression with positive exponents: y-3

Click here to see answer by jim_thompson5910(35256) About Me 

Question 387999: Evaluate the expression 2^5/2^3 and write your answer as a fraction in simplest form.

Click here to see answer by jim_thompson5910(35256) About Me 

Question 387997: Rewrite the expression with positive exponents: 1/(3x^-3)
Click here to see answer by KAS(2) About Me 

Question 387995: Evaluate the expression (1/3)-1 and write your answer as a fraction in simplest form.
Click here to see answer by stanbon(75887) About Me 

Question 387994: Simplify the expression if possible (2^3)^4 and write your answer as a power (using exponents). Thank you, Geoffrey
Click here to see answer by Fombitz(32388) About Me 

Question 387908: Solve graphically
2x-y=10
x+5y=-6

Click here to see answer by Fombitz(32388) About Me 

Question 387757: graph the inequality on a plane y>-2x+3
Click here to see answer by Fombitz(32388) About Me 

Question 388060: Find the x-intercept of the graph of the equation: 4x + y = 3

Click here to see answer by Fombitz(32388) About Me 

Question 388104: 4+10x+5-9x
Click here to see answer by rfer(16322) About Me 

Question 388162: HOW DO I GRAPH THE EQUTION y+x=14
Click here to see answer by avani(25) About Me 

Question 388165: 7x-2y=-11
Click here to see answer by avani(25) About Me 

Question 388220: Find the slope of the line passing through the pair of points: (1,3) and (-5,4).

Click here to see answer by Jk22(389) About Me 

Question 388228: a) Sketch the graph of g: x|--> x%5E2%2B6x%2B7
b) Explain why g for x(belongs to) ]-(infinity),-3] has an inverse function g%5E-1
c) Find Algebraically, the equation of g%5E-1
Thanks :)

Click here to see answer by Fombitz(32388) About Me 

Question 388236: Im trying to find the y intercept and the x intercept in that order.
-3x + 2y =6
Im also trying to find the median for for these set of numbers 23 51 237 397 462

Click here to see answer by rapaljer(4671) About Me 

Question 388261: What is the equation of the line, in standard form, thta passes through (4,-3) and is parallel to the line whose equation is 4x+y-2+0
Click here to see answer by Fombitz(32388) About Me 

Question 388262: y varies directly with x and has a constant rate of change of 7.
When the value of y is 12, then the value of x would be?

Click here to see answer by MathLover1(20849) About Me 

Question 388321: For what values of the variable x is the rational expression undefined: 8/(x + 2)

Click here to see answer by jim_thompson5910(35256) About Me 

Question 388329: Determine whether (6,-8) is a solution of:
3x-5y=17

Click here to see answer by jim_thompson5910(35256) About Me 

Question 388330: Graph the inequality on a plane.
4x+5y≤20
Please tell me what are the paired orders and tell me what paired order goes where. If I am looking at the graph....does the first paired order go in the north east south east north west or south west and please explain the same way for the second paired coordinates. This will help me understand how to graph better. Thank you in advance!

Click here to see answer by jim_thompson5910(35256) About Me 

Question 388332: Find an equation for the line with the given properties. Express the answer using the general form of the equation of a line.
Perpendicular to the line -4x + 5y = -23; containing the point (-3, 7)
-3x - 5y = -23
-4x - 5 = -4
-5x + 4y = -13
-5x - 4y = -13


Click here to see answer by jim_thompson5910(35256) About Me 

Question 388345: How do u get slope ?plz help fast i don't want to fill da EOC
Click here to see answer by jim_thompson5910(35256) About Me 

Question 388348: 1 Use the discriminant to determine whether the quadratic equation has two unequal real solutions, a repeated real solution, or no real solution without solving the equation.
5x2 - 2x - 1 = 0

repeated real solution
two unequal real solutions
no real solution
2 Write the general form of the equation of the circle with radius r and center (h, k).
r = 2; (h, k) = (4, -4)

x2 + y2 + 8x - 8y + 20 = 0
x2 + y2 + 8x + 8y + 20 = 0
x2 + y2 - 8x - 8y + 20 = 0
x2 + y2 - 8x + 8y + 20 = 0

3 Write the standard form of the equation of the circle with radius r and center (h, k).
r = 10; (h, k) = (4, -10)

(x + 4)2 + (y - 10)2 = 100
(x + 4)2 + (y - 10)2 = 10
(x - 4)2 + (y + 10)2 = 100
(x - 4)2 + (y + 10)2 = 10


Click here to see answer by user_dude2008(1862) About Me 
Question 388348: 1 Use the discriminant to determine whether the quadratic equation has two unequal real solutions, a repeated real solution, or no real solution without solving the equation.
5x2 - 2x - 1 = 0

repeated real solution
two unequal real solutions
no real solution
2 Write the general form of the equation of the circle with radius r and center (h, k).
r = 2; (h, k) = (4, -4)

x2 + y2 + 8x - 8y + 20 = 0
x2 + y2 + 8x + 8y + 20 = 0
x2 + y2 - 8x - 8y + 20 = 0
x2 + y2 - 8x + 8y + 20 = 0

3 Write the standard form of the equation of the circle with radius r and center (h, k).
r = 10; (h, k) = (4, -10)

(x + 4)2 + (y - 10)2 = 100
(x + 4)2 + (y - 10)2 = 10
(x - 4)2 + (y + 10)2 = 100
(x - 4)2 + (y + 10)2 = 10


Click here to see answer by stanbon(75887) About Me 

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, 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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