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

Tutors Answer Your Questions about Graphs (FREE)

Question 48471: Can someone please help me with this problem, I am so confused. Thank you in advance!
Find the slope of the graph of x=-4y+1
Click here to see answer by rajagopalan(174)

Question 48466: given f(x)=5x^2-3x+1,find f(-2)
I do not understand this-functions are not clear to me
Click here to see answer by rajagopalan(174)

Question 48429: I need help graphing the solution to an inequality. y<-2 (x-1)^2 + 2
I also need to find the intercepts. If anyone can help, I would appreciate it.
Click here to see answer by longjonsilver(2297)

Question 48508: Sketch the graph of each equation by finding three ordered pairs that satisfy the each equation.

a.) y = -2x + 4

b.) y = 5x � 6

c.) -3x �y = 2

Click here to see answer by cowess(34)

Question 48518: Can someone please help me with this problem, I am so confused.
On the same set of axes, graph y=-x and y= -x+4
Thank you in advance!
Click here to see answer by cowess(34)

Question 48522: How can I create an equation or an inequality that can be used for analysis, prediction, or decision making when discussing the weather temperatures from one year to another?
Click here to see answer by tutorcecilia(2152)

Question 48465: Graph f(x)=-2x + 2
Please help me - I am lost!!
Click here to see answer by tutorcecilia(2152)

Question 48571: Find an equation of the line
a. passing through (-5,4) and parallel to 2x-3y=4. leave answer in slope intercept form.
I have worked the entire problem out and came up with y=2/3x-29/3. But the answer on the handout say it should be y=2/3x-22/3. what am i doing wrong?
Click here to see answer by longjonsilver(2297)

Question 48589: Solve the system by graphing
2x + 4y = 2
x + 2y = 1
Thanks
Click here to see answer by tutorcecilia(2152)

Question 48595: How do you interpret the solution of a system of equations by the corresponding graph?

Click here to see answer by tutorcecilia(2152)

Question 48681: CAN SOMEONE PLEASE HELP ME GRAPH THIS EQUATION. I WAS UP TILL 2:00AM THIS MORNING TRYING MYSELF AND USING THE SOLVERS.
How do I graph the following equation?

y=3/4x + 2
THANK YOU IN ADVANCE
Click here to see answer by atif.muhammad(135)

Question 48700: Solve by graphing.
2x - 3y = 12
3y - 2x = -12
Click here to see answer by venugopalramana(3286)

Question 48699: Solve by graphing.
y = 3x - 4
y = -2x + 1

Click here to see answer by venugopalramana(3286)

Question 48739: I need help. I have been trying to graph this problem for a few days. It is 25x^2+4y^2>or=100
I know this is an ellipse or circle. Does this problem need to be solved by the square root property?
Click here to see answer by stanbon(75887)

Question 48749: How do I find an equation of a parabola with a given vertex and y intercept. I need it in the form y=ax^2+bx+c form.
I just need to know the proper steps to do it. Any ideas?
Click here to see answer by Nate(3500)

Question 48769: I need to solve an equation that has multiple sets. 2x+y-z=3
and -x+2y+7=3 and -4x+3y+2z=-1 Does anyone have an idea on how to go about this? please help me if you do. My home work assignment just says to solve. I do not need to graph it. So Do I just solve each one individually?
Click here to see answer by longjonsilver(2297)

Question 48817: Write the equation of the line passing through each given points with the indicated slope. Give your results nin slope/intercept form, where possible
(0,5),m= -3/5
Click here to see answer by venugopalramana(3286)

Question 48818: solve by graphing
3x + y = 5
-2x + 3y = 4
Click here to see answer by venugopalramana(3286)

Question 48816: If y varies inversely as x^2, and y = 2 when x = 4, what is the constant of variation?

Click here to see answer by alka001(14)

Question 48814: Find the slope of any line perpendicular to the line through points (0,5) and (-3,-4)
Csn someone show me how these get worked out?
Click here to see answer by kev82(151)

Question 48812: Driving down a mountain, Tom finds that he has decended 1800ftin elevation by the time he is 3.25 mi horizontally away from the top of the mountin. Find the slope of his descent to the nearest hundredth.
Please help work this out
Click here to see answer by checkley71(8403)

Question 48815: for the function f(x)=x^2 - 2x + 1
(a) find f(0)
(b)solve f(x)=0

Click here to see answer by Nate(3500)

Question 48897: solve the system by graphing
x+y=4
-x+y=2
problem #2
2x + y = 4
x + y = 3
I have trouble with these and I am so lost HELP please
Click here to see answer by Nate(3500)

Question 48813: x-y=6 graph the equation
Click here to see answer by rajagopalan(174)

Question 48918: Find the slope and y-intercept of the line represented by the following equation
2x-3y=6
Click here to see answer by alka001(14)

Question 48928: Need to solve graphically.

Having trouble factoring and finding intercepts.
Click here to see answer by Nate(3500)

Question 48927: I have to solve the equation graphically. Must move all terms to left side and then locate the x-intercepts 0n the graph of the equation where y=left side. The equation:

Having trouble factoring and finding intercepts.
Click here to see answer by Nate(3500)

Question 48926: I am wondering if anyone knows how to find the domain of the relation y = the square root of 3-2x and then + 1?
Click here to see answer by Nate(3500)

Question 48922: Write the equation of the line "L" satisfying the given geometric conditions
"L" has y-intercept (0,-3) and is parallel to the line
with equation y=2/3x + 1
Click here to see answer by alka001(14)

Question 48953: how do i graph the equation y=3x+2 using only the slope and y-intercept and not my calculator?
Click here to see answer by venugopalramana(3286)

Question 48921: Write the equation of the line with given slope and y-intercept. Then graph each line using the slope and y-intercept
slope: -3/4; intercept:(0,8)
Click here to see answer by checkley71(8403)

Question 48920: Write the equation of the line with given slope and y-intercept. Then graph each line using the slope and y-intercept
slope:5; y-intercept:(0,-2)
Click here to see answer by checkley71(8403)

Question 48956: hwo do i graph this inequality? y>-3x+4
-
Click here to see answer by venugopalramana(3286)

Question 48956: hwo do i graph this inequality? y>-3x+4
-
Click here to see answer by tutorcecilia(2152)

Question 48919: Write the equation of the line with given slope and y-intercept. Then graph each line using the slope and y-intercept
Slope:-2;y-intercept:(0,4)
Click here to see answer by tutorcecilia(2152)

Question 48950: Having trouble factoring:

need to solve graphically
Click here to see answer by Nate(3500)

Question 48991: I need help. I need to state the range of the function f(x)= (x-2)^2 + 1
I have solved it this far.....
(x-2) (x-2) + 1
x^2-2x-2x+4 +1
x^2-4x+5 and then I equaled it to zero.
X^2-4x + 5 = 0
Now, I am stuck. Am I doing it right? If I am finding the range I am trying to find Y, right? So I need to solve x so I can find y. But what if I can not go any further?
Click here to see answer by Nate(3500)

Question 48992: I need help with a problem.
I need to find an element in the domain of h(x)= log4(x-2) that coresponds with 1, a member of the range.

Click here to see answer by Born2TeachMath(20)

Question 49016: Please help write the equation of the line that passes through point (0, �7) with a slope of -7/2 .
Click here to see answer by tutorcecilia(2152)

Question 49015: How do I determine which two equations represent parallel lines?
y = 4x � 8
y = �4x + 8
y = 4x + 5
y = x � 8

Click here to see answer by tutorcecilia(2152)

Question 49022: Please help write equation of:
the line with x-intercept (3, 0) and y-intercept (0, 2).
Click here to see answer by tutorcecilia(2152)

Question 49027: Please help find the slope and the y-intercept.
y = �5x + 9

Click here to see answer by tutorcecilia(2152)

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