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

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Question 360987: My home work ? is a firm produces both am and am/fm car radios. the am radios take 15 hours to produce and the am/fm radios take 20 hours to produce. the number of production hours is limited to 300 hours per week. the plant's capacity is limited to a total of 18 radios per week, and existing orders require that at least 4 am radios and at least 3 am/fm radios br produced per week. Write a system of inequalities reppresenting the situation. In this case let x = am radios and y = am/fm radios. (use LTE for less than or equal to and GTE for greater than or equal to)
I'm so lost.
Click here to see answer by ankor@dixie-net.com(15746)

Question 361205: Marty has a circular irrigation system. A single sprinkler is placed in the center of his square field. If the sprinkler sprays water just to the four edges of the field, what percent of the field is not watered?
if r = 1 the square is 4
the circle is pie
4 - pie
_______ = 100 = 21.46 %
4
Click here to see answer by Alan3354(31537)

Question 361302: Determine whether the following lines are parallel, perpendicular, or the same line.
-3x + 5y = - 7 and -3x -5y = -7
Click here to see answer by rfer(12730)

Question 361300: Determine whether the following lines are parallel, perpendicular, or the same line.
y = x + 1 and y = - x – 14
Click here to see answer by edjones(7569)

Question 361436: Graph -3/5 x + 4
Click here to see answer by jim_thompson5910(28717)

Question 361484: When solving for slope (y2-y1)/(x2-x1), the answer is 10/0. How is this expressed?
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Question 361529: sketch the graph of 2x-3y<6
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Question 361497: Trying to help my daughter with Question #54 on page 299 of McDougal Little Algebra 1.
An In-line skater practices ar a race track. In two trials the skater travles the same distance going from a standstill to his top racing speed. He then travels at his top racing speed for different distances.
Trial 1, Time at Top Speed 24 seconds, total distance traveled 300 meters.
Trial 2, Time at Top Speed 29 seconds, Total distance traveled 350 meters.
A. Model -Write an equation that gives the total distance traveled (in meters) as a function of time (in seconds) at top racing speed.
B. - Justify -What do the rate of change and initial value in your equation represent? Explain you answer using unit analysis.
C. Predict - One lap around the race track is 200 meters. The skater starts at a standstill and completes 3 laps. Predict the number of seconds the skater travels at his top racing speed. Explain your method.

Click here to see answer by scott8148(6628)

Question 361583: solve for y
2y-8x=-12
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Question 361741: y=2x-4
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Question 361755: For this function, find three ordered pairs that lie on the graph of the function: -6 = 3x + 2y
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Question 361759: Graph the functions y = |x| and y = -|x|. Describe how they are alike. How are they different?
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Question 361768: graph this function:
3x - y = 13
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Question 361772: 2x+3y-4(2x-y)
It's a multiply choice question below i have listed answers.
a.-6x+7y
b.-6x-y
c.10x+2y-4
d.-6x+2y
I have tried several way to get answer but I'm not getting it
Click here to see answer by Fombitz(13828)

Question 361607: solve for y
problem: x/a + y/b=1
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Question 361897: 4y-2x=0 graphed
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Question 362017: Through(3,4) perpendicular to y =-3x+2

Dmitri needs 5 liters of a 43% solution of sulfuric acid for a research project in molecular biology. He has two supplies of sulfuric acid solution: one is an unlimited supply of the 40% solution and the other an unlimited supply of the 45% solution. How many liters of each solution should Dmitri use?
Click here to see answer by ewatrrr(10682)

Question 362053: The lines passing through points (1, 1), (2, 3) and (3, 7), (2, 5) on a grid would be _______ lines
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Question 362101: I need to find the slope and y-int of 5x+6y=12 and graph it. I keep coming up with the wrong answer
Click here to see answer by HasanSahin(52)

Question 362297: a+15>19
Click here to see answer by robertb(4012)

Question 362338: Graph the solution of the system of linear inequalities.
y≥-x+2
y≤4x+7
I would really appreciate the help.
Click here to see answer by HasanSahin(52)

Question 362280: compute the indicated products
1 3 1 3 0

-1 2 3 0 2

Click here to see answer by Fombitz(13828)

Question 362278: Preform the the indicated operations
3 1 1 -3 -2 -1 8
3 2 3 +4 4 2 2
7 -1 6 3 6 3
Click here to see answer by Fombitz(13828)

Question 362375: what are the orders pair of
1)2x - 5y = 10
2)y = 3x + 4
Click here to see answer by Fombitz(13828)

Question 362376: sketch what you think a histogram looks like for each situation, remember to label values and units on the axes.A) the outcomes when rolling a die 100 times.

Click here to see answer by Fombitz(13828)

Question 362395: 4(1-3n)-14>4(2n+3)-9n

Click here to see answer by robertb(4012)

Question 362346: graph the function y=2(x-3)squared-1. Show and label at least 3 points.
Click here to see answer by Fombitz(13828)

Question 362325: 4y=24-12x
Click here to see answer by Fombitz(13828)

Question 362318: Help please!
Graph the function for the given domain
2x-y=3;D:{-2,0,1,3}
Click here to see answer by Fombitz(13828)

Question 362490: find the midpoint of the line between two points (10,4)(2,6)
Click here to see answer by Krist_bridges17(1)

Question 362490: find the midpoint of the line between two points (10,4)(2,6)
Click here to see answer by Alan3354(31537)

Question 362542: 5x+3y=30 Find y-intercept and the x-intercept for the equation...
Click here to see answer by nerdybill(7009)

Question 362541: 4=x+2 Graph the equation and Identify the y-intercept.
Just lost on the problem all together.
Click here to see answer by Alan3354(31537)

Question 362539: 3x-9=3y Use intercepts to graph equation.
Same problem i dont know what to do to come up with substitutes for x and y.
Click here to see answer by Alan3354(31537)

Question 362540: -x+5y=10 Use the intercepts to graph the equation.
Same problem i dont know what to do to come up with substitutes for x and y.
Click here to see answer by Alan3354(31537)

Question 362537: Graph the equation and identify the Y-intercept Y=1/2x.
My biggest problem is i dont understand how we get a value to substitute for x.
Click here to see answer by Alan3354(31537)

Question 362570: How do I Figure this out?
Write an equation, in slope-intercept form , Given f(-5)=-45, and f(0)=-5
Click here to see answer by jim_thompson5910(28717)

Question 362588: x + y ( 2x + y( x >or= 0, y >or= 0
and graph please

Click here to see answer by Fombitz(13828)

Question 362613: graph 6x+y=20
Click here to see answer by Fombitz(13828)

Question 362646: x=8 graph the equation by plotting points
Click here to see answer by Alan3354(31537)

Question 362648: x+9y=18 Find slope if it exists.
Click here to see answer by rfer(12730)

Question 362649: y=x+2 Graph the equation and identify the y intercept.
Click here to see answer by rfer(12730)

Question 362647: (-9,-5)(-12,-7) Find slope if it exists
Click here to see answer by rfer(12730)

Question 362647: (-9,-5)(-12,-7) Find slope if it exists
Click here to see answer by checkley77(12569)

Question 362642: 6y+5x=-18 Graph the equation and identify the y intersection.
Click here to see answer by rfer(12730)

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