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

Tutors Answer Your Questions about Graphs (FREE)

Question 111709: Determine the range.
17, 16, 10, 15, 20

Click here to see answer by BrittanyM(80)

Question 111710: Find the sum of x for the following set of numbers
2,3,5,6,8,9,11
Click here to see answer by Edwin McCravy(20054)

Question 111708: A line passing through (�6, �5) and (�1, y) is perpendicular to a line with slope . Find the value of y.
Click here to see answer by Edwin McCravy(20054)

Question 111717: A line passing through (�6, �5) and (�1, y) is perpendicular to a line with slope -5/13 . Find the value of y.
Click here to see answer by MathLover1(20849)

Question 111824: Solve the system by graphing.
3x + y = 6
3x � y = 0

Click here to see answer by jim_thompson5910(35256)

Question 111820: Solve the system by graphing.
x + y = 4
�x + y = 2

Click here to see answer by jim_thompson5910(35256)

Question 111819: Solve the system by graphing.
3x + y = �1
9x + 3y = �3

Click here to see answer by jim_thompson5910(35256)

Question 111823: Solve the following system of linear inequalities by graphing.
3x � y < 2
x + y > 2

Click here to see answer by jim_thompson5910(35256)

Question 111821: Solve the following system of linear inequalities by graphing.
x � y < 3
x + 2y > 6

Click here to see answer by jim_thompson5910(35256)

Question 111818: Graph the inequality.
2x + 3y > 6

Click here to see answer by jim_thompson5910(35256)

Question 111816: Graph f(x) = �2x + 2.
Click here to see answer by jim_thompson5910(35256)

Question 111814: Graph the inequality. y > 1
-
Click here to see answer by jim_thompson5910(35256)

Question 111873: Please help.
Graph using the intercept method 2x -5y =10.
Thanks
JMS
Click here to see answer by checkley71(8403)

Question 111886: Please help me with understanding how to solve each system by graphing. For example, I have to solve, then graph the below:
-y -9 = -x (answer y=-1x+9)
-12-6y = x (answer y=6x+2)
I understand how to get the answer if the answer is actually correct, however, I need to understand how I then graph it. Please help.
Click here to see answer by stanbon(75887)

Question 111895: Can you please help me with this equation.
find the midpoint between these points: (2,3) and (8,1)
Click here to see answer by jim_thompson5910(35256)

Question 111896: Can you help me with this problem?
The linear equation y=5 graphs as a horizontal/vertical/diagonal line (choose the correct label and show the work)
Click here to see answer by scott8148(6628)

Question 111926: Find the slope of the line through the following pairs of points.
(-5, -3) and (-5, 2)

Click here to see answer by jim_thompson5910(35256)

Question 111801: 4x + y > 4
Click here to see answer by jim_thompson5910(35256)

Question 111977: Graph
x-2y=8
3x-2y=12
Click here to see answer by MathLover1(20849)

Question 111978: graph
3x-6y=9
x-2y=3
Click here to see answer by MathLover1(20849)

Question 111975: Solve each of the following systems by addition. If a unique solution does not exist, state whether the system is inconsistent or dependent.
x+5y=10
-2x-10y=-20
Click here to see answer by stanbon(75887)

Question 111973: Jill has $3.50 in nickels and dimes. If she has 50 coins, how many of each type of coins does she have?
Click here to see answer by stanbon(75887)

Question 111979: Find values for m and b in the following system so that the solution to the system is (-3,4)
5x+7y=b
mx+y=22
Click here to see answer by MathLover1(20849)

Question 111995: Hi I have worked this problem and now need to know if I did it right so that I can graph it.
Can anyone help me.
3x-y< 2
znd x+y>2
the first equation I multiplied by -1
(-1) (3x-y<2)
then I flipped the sign so now I have
-3x +y >-2
I added 3y to both sides
I came up with my slope intercept form/answer
y>3/1x - 2
So my slope is 3/1 and y intercept is (0,-2)
Is that correct?
Then for my other equation x+y > 2
a minus x on both sides and flipped the sign
to come up with
y< - x/1 + 2
Should I have flipped the sign? Or is that only when you divide?
If I did it right then the slope will be (-1/1) and the y intercept will be (0,2)
If this is correct I can now graph. I am getting pretty good at graphing now.
Thank you for your help.
Tracy
Click here to see answer by jim_thompson5910(35256)

Question 111985: 1)graph using the intercept method 2x-5y=10
2)FIND THE SLOPE OF THE LINE PASSING THROUGH THE POINTS (-5,5) AND(-3,5)
Click here to see answer by jim_thompson5910(35256)

Question 111982: Solve each of the following systems by substitution.
4x-12y=5
-x+3y=-1
Click here to see answer by jim_thompson5910(35256)

Question 111981: Solve each of the following systems by substitution.
8x-4y=16
y=2x-4
Click here to see answer by jim_thompson5910(35256)

Question 111980: Solve each of the following systems by substitution.
5x-2y=-5
y-5x=3
Click here to see answer by jim_thompson5910(35256)

Question 111976: Graph
2x-y=4
2x-y=6
Click here to see answer by jim_thompson5910(35256)

Question 111974: Solve each of the following systems by addition. If a unique solution does not exist, state whether the system is inconsistent or dependent.
2x+3y=1
5x+3y=16
Click here to see answer by jim_thompson5910(35256)

Question 112009: Please help.
Plot the point with coordinates (-3, -3)
Thanks
JMS

Click here to see answer by jim_thompson5910(35256)

Question 112040: Write the equation of the line passing through (�3, 4) and (�3, 2).
Click here to see answer by jim_thompson5910(35256)

Question 112041: Write the equation of the line passing through (�3, �5) and (3, 0).
Click here to see answer by jim_thompson5910(35256)

Question 112043: The difference of two numbers is 86. The second is 6 less than 5 times the first. What are the two numbers?
Click here to see answer by jim_thompson5910(35256)

Question 112043: The difference of two numbers is 86. The second is 6 less than 5 times the first. What are the two numbers?
Click here to see answer by BrittanyM(80)

Question 112045: Graph the inequality.
2x + 3y > 6

Click here to see answer by jim_thompson5910(35256)

Question 111960: Please help :)
Find the equation for the line passing through the origin and perpendicular to y=1/2x-2
Thanks
Click here to see answer by BrittanyM(80)

Question 112042: Sally bought three chocolate bars and a pack of gum and paid $1.75. Jake bought two chocolate bars and four packs of gum and paid $2.00. Find the cost of a chocolate bar and the cost of a pack of gum.
Click here to see answer by BrittanyM(80)

Question 112048: The sum of two numbers is 93. The second is 3 more than 4 times the first. What are the two numbers?
Click here to see answer by BrittanyM(80)

Question 112052: Rewrite the equation 4x � 10y = 11 as a function of x.
Click here to see answer by checkley71(8403)

Question 112051: The sum of two numbers is 33. Their difference is 7. What are the two numbers?
Click here to see answer by checkley71(8403)

Question 111972: A coffee merchant has coffee beans that sell for $9 per
pound and $12 per pound. The two types are to be mixed to create 100 lb of a mixture that will sell for $11.25 per pound. How much of each type of bean should be used in the mixture?
Click here to see answer by checkley71(8403)

Question 111954: Question is not from the text.
Could you please tell me how to set up the following problem?
How many ounces of pure gold must be added to five ounces of something that is 1% gold in order that the mixture is 6% gold?
Thanks!
Click here to see answer by ankor@dixie-net.com(22740)

Question 111953: Question is not from the text.
Could you please tell me how to set up the following problem?
How many ounces of pure gold must be added to five ounces of something that is 1% gold in order that the mixture is 6% gold?
Thanks!
Click here to see answer by ptaylor(2198)

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, 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, 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