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

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Question 1195027: If x+=+100 and y+=+1, then 19x%2B83y+=+1983. There is exactly one other pair of positive integers x and y, for which this equation is true. What is the sum of this pair of integers?
Click here to see answer by ikleyn(52779) About Me 
Question 1195027: If x+=+100 and y+=+1, then 19x%2B83y+=+1983. There is exactly one other pair of positive integers x and y, for which this equation is true. What is the sum of this pair of integers?
Click here to see answer by math_tutor2020(3816) About Me 
Question 1195027: If x+=+100 and y+=+1, then 19x%2B83y+=+1983. There is exactly one other pair of positive integers x and y, for which this equation is true. What is the sum of this pair of integers?
Click here to see answer by greenestamps(13200) About Me 

Question 1195069: I need help with this please:
The military is performing missile tests. A new missile is launched from the ground and it's path can be modelled by the quadratic equation y=-4(x-10)^2+400, where y is the missile's height in meters and x is the time in seconds. 10 seconds later, a second heat-seeking missile is launched to intercept and explode the first missile before it reaches the ground. The second missile's path can be modelled by the quadratic equation y=2(x-20)^2+300, where y is its height in meters and x is its time in seconds. At what time and height should the second missile reach and explode the first missile.

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

Question 1195067: A quadratic-quadratic system of equations can have no solution, infinite solutions and two other possibilities. Graph two different quadratic-quadratic systems of equations below to demonstrate these two other possibilities.
Click here to see answer by greenestamps(13200) About Me 

Question 1195105: Can I please have help with this please! Thank You!
1. y=2x^2-12x+19,y=2x-1
2. y=x^2-2x+8,y=x-7
3. y=x^2+5x-7, y=2x^2=2x+3

Click here to see answer by Alan3354(69443) About Me 
Question 1195105: Can I please have help with this please! Thank You!
1. y=2x^2-12x+19,y=2x-1
2. y=x^2-2x+8,y=x-7
3. y=x^2+5x-7, y=2x^2=2x+3

Click here to see answer by josgarithmetic(39617) About Me 
Question 1195105: Can I please have help with this please! Thank You!
1. y=2x^2-12x+19,y=2x-1
2. y=x^2-2x+8,y=x-7
3. y=x^2+5x-7, y=2x^2=2x+3

Click here to see answer by ikleyn(52779) About Me 

Question 1195106: Can I please have help on this problem thank you!
Graphically determine the solution to the systems
1. y=2x^2-12x+19,y=2x-1
2. y=x^2-2x+8,y=x-7
3. y=x^2+5x-7, y=2x^2=2x+3

Click here to see answer by Alan3354(69443) About Me 
Question 1195106: Can I please have help on this problem thank you!
Graphically determine the solution to the systems
1. y=2x^2-12x+19,y=2x-1
2. y=x^2-2x+8,y=x-7
3. y=x^2+5x-7, y=2x^2=2x+3

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

Question 1195107: Can you please help me with these problems thank you
Graph m>-3 on a number line
2. Without graphing please which of the following inequalities have(1,4) as a solution please show work thank you!
3x+4y>19 or 7x-2y>-1

Click here to see answer by MathLover1(20849) About Me 
Question 1195107: Can you please help me with these problems thank you
Graph m>-3 on a number line
2. Without graphing please which of the following inequalities have(1,4) as a solution please show work thank you!
3x+4y>19 or 7x-2y>-1

Click here to see answer by ikleyn(52779) About Me 

Question 1195108: Please help me solve this please! Graph the inequalities. Then pick a point in the solution region and verify it using the equation. Thank You!
1 .y>3/4x-½
2. y<-1/2x+4
3. 6x+3y<12

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

Question 1195116: Gerald can complete a math assignment in 2 hours and a physics assignment in 1 hour. If he has 8 hours to complete a set of assignments, how many math assignments can he complete if he decides to leave the science assignments for the next day? This situation is given by 2x + y = 8, where x is the number of completed math assignments and y is the number of completed science assignments. (, , x and y take only integer values)

Click here to see answer by greenestamps(13200) About Me 
Question 1195116: Gerald can complete a math assignment in 2 hours and a physics assignment in 1 hour. If he has 8 hours to complete a set of assignments, how many math assignments can he complete if he decides to leave the science assignments for the next day? This situation is given by 2x + y = 8, where x is the number of completed math assignments and y is the number of completed science assignments. (, , x and y take only integer values)

Click here to see answer by ikleyn(52779) About Me 

Question 1195182: what is the ordered pair for the equation, y= 2x + 7
Click here to see answer by Theo(13342) About Me 

Question 1195195: For which values of k do the lines x%2Bky=4 and 2x-3y=6 intersect in the 3rd quadrant? Write your answer as an open interval.
Click here to see answer by lotusjayden(18) About Me 
Question 1195195: For which values of k do the lines x%2Bky=4 and 2x-3y=6 intersect in the 3rd quadrant? Write your answer as an open interval.
Click here to see answer by ikleyn(52779) About Me 

Question 1195281: How do I shade the equation -3x+4y>12 ? are there certain steps?
Click here to see answer by josgarithmetic(39617) About Me 
Question 1195281: How do I shade the equation -3x+4y>12 ? are there certain steps?
Click here to see answer by math_tutor2020(3816) About Me 

Question 1195454: The military is performing missile tests. A new missile is launched from the ground and it’s path can be modelled by the quadratic equation
y=-4(X-10)^2 +400 , where y is the missile’s height in meters and x is the time in seconds. 10 seconds later, a second heat-seeking missile is
launched to intercept and explode the first missile before it reaches the ground. The second missile’s path can be modelled by the quadratic equation
y= -2(x-20)^2+300
, where y is its height in meters and x is its time in seconds. At what time and height should the second missile
reach and explode the first missile?

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

Question 1195453: A football is kicked straight up into the air. Its height above the ground is approximated by the relation y=25x - 5x^2
,where y is the height of the ball in meters and x is the time in seconds.
There are two times when the football is 27.5 m in the air, on the way up and on the way down.
Joe realizes that using the equation
y= 27.5
, he can determine the two times the ball is 27.5
meters in the air. Algebraically or graphically determine these two times.

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

Question 1195506: The Sugar Sweet Company is going to transport its sugar to market. It will cost $2900 to rent trucks, and it will cost an additional $100 for each ton of sugar transported. Let C represent the total cost (in dollars), and let S represent the amount of sugar (in tons) transported. Write an equation relating C to S, and then graph your equation using the axes below. Equation:
Click here to see answer by ikleyn(52779) About Me 

Question 1195572: Sketch the following inequalities on the graph.
A. y is less than -4
B. x is greater than or equal to 5
C.y-7 is less than or equal to 0.

Click here to see answer by Alan3354(69443) About Me 
Question 1195572: Sketch the following inequalities on the graph.
A. y is less than -4
B. x is greater than or equal to 5
C.y-7 is less than or equal to 0.

Click here to see answer by ikleyn(52779) About Me 

Question 1195571: Can I please have help with this, Thank you!
On the grid, sketch the inequalities below and determine the solution region.
y is greater than or equal to 0
x is greater than or equal to 0
y is less than or equal to x+2
y is less than or equal to 14-2x

Click here to see answer by math_tutor2020(3816) About Me 

Question 1195596: A circle of radius 5 has its center at the origin. Inside this
circle there is a first-quadrant circle of radius 2 that is
tangent to . The y-coordinate of the center of is 2. Find
the x-coordinate of the center of C2

Click here to see answer by ikleyn(52779) About Me 
Question 1195596: A circle of radius 5 has its center at the origin. Inside this
circle there is a first-quadrant circle of radius 2 that is
tangent to . The y-coordinate of the center of is 2. Find
the x-coordinate of the center of C2

Click here to see answer by Alan3354(69443) About Me 

Question 1195570: Can I please Have help with this, Thank you!

Graph the inequalities.Then pick a point in the solution region and verify it using the equation.
A. y is greater than or equal to 3/4x-1/2

B. y is less than-1/2x+4

C. 6x+3y is less than or equal to 12

Click here to see answer by josgarithmetic(39617) About Me 

Question 1195569: Can I please have help with this, thank you!
Graph the following systems of linear inequalities and indicate
the solution region:
y is greater than or equal to -1/2x+2 B. y is greater than or equal
to 0
y is greater then or equal to-3/2x-3 x is greater then or equal
to 0
X+y is less than or equal to
6
3x+8y is less than or
equal to 24

Click here to see answer by Alan3354(69443) About Me 
Question 1195569: Can I please have help with this, thank you!
Graph the following systems of linear inequalities and indicate
the solution region:
y is greater than or equal to -1/2x+2 B. y is greater than or equal
to 0
y is greater then or equal to-3/2x-3 x is greater then or equal
to 0
X+y is less than or equal to
6
3x+8y is less than or
equal to 24

Click here to see answer by ikleyn(52779) About Me 

Question 1195813: If ( -A , 2 B ) , ( 3 A -2 , 3 - B ) two solutions of the equation X + Y = 4
Then find A , B :

Click here to see answer by Boreal(15235) About Me 

Question 1195834: How many ordered pairs of integers (a,b) satisfy all of the following inequalities?
a%5E2%2Bb%5E2%3C16
a%5E2%2Bb%5E2%3C8a
a%5E2%2Bb%5E2%3C8b

Click here to see answer by greenestamps(13200) About Me 
Question 1195834: How many ordered pairs of integers (a,b) satisfy all of the following inequalities?
a%5E2%2Bb%5E2%3C16
a%5E2%2Bb%5E2%3C8a
a%5E2%2Bb%5E2%3C8b

Click here to see answer by ikleyn(52779) About Me 
Question 1195834: How many ordered pairs of integers (a,b) satisfy all of the following inequalities?
a%5E2%2Bb%5E2%3C16
a%5E2%2Bb%5E2%3C8a
a%5E2%2Bb%5E2%3C8b

Click here to see answer by math_tutor2020(3816) About Me 

Question 1195843: y=8f(x) graficar a partir de la grafica f(x)=x^2
Click here to see answer by ikleyn(52779) About Me 

Question 1195873: Find the slope-intercept form of the equation of the line passing through ( - 2, 5) perpendicular to the graph of y=-1/8x+19/4

Click here to see answer by ikleyn(52779) About Me 
Question 1195873: Find the slope-intercept form of the equation of the line passing through ( - 2, 5) perpendicular to the graph of y=-1/8x+19/4

Click here to see answer by Alan3354(69443) About Me 
Question 1195873: Find the slope-intercept form of the equation of the line passing through ( - 2, 5) perpendicular to the graph of y=-1/8x+19/4

Click here to see answer by greenestamps(13200) About Me 

Question 1196026: Josel buys cell-phone services from a company that charges a minimum of $20 per
month. For that $20, he is allowed 100 minutes of free calls. For any calls above
100 minutes, he pays 50 cents per additional minute. Sketch a graph that describes
Josel’s monthly bill as a function of total time. Clearly label your graph.

Click here to see answer by Theo(13342) About Me 
Question 1196026: Josel buys cell-phone services from a company that charges a minimum of $20 per
month. For that $20, he is allowed 100 minutes of free calls. For any calls above
100 minutes, he pays 50 cents per additional minute. Sketch a graph that describes
Josel’s monthly bill as a function of total time. Clearly label your graph.

Click here to see answer by MathTherapy(10552) About Me 

Question 1196167: What steps should be take to find the zero of the equation 5x + 4y = 20
Click here to see answer by josgarithmetic(39617) About Me 
Question 1196167: What steps should be take to find the zero of the equation 5x + 4y = 20
Click here to see answer by ikleyn(52779) About Me 

Question 1196253: Graph the line with slope -2 passing through the point (-1,-1).
Click here to see answer by ikleyn(52779) About Me 
Question 1196253: Graph the line with slope -2 passing through the point (-1,-1).
Click here to see answer by Alan3354(69443) 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, 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