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

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Question 1169904: What is the x and y intercepts of the vertex (0,-2)? There's no given quadratic function, only the parabola.
Click here to see answer by ikleyn(52781)

Question 1169958: The lines y = 2x + 4 and x + y =
13 make angles of a° and b° with
the positive direction of the x-axis,
as shown in the diagram.
a)Find the values of a and b.
BHence find the acute angle
between the two given lines.
there is no points on graph given at all only equation of 2 lines crossing over each other and its asking you to find the angles touching the x axis

Click here to see answer by Boreal(15235)

Question 1169963: y = 7 − 2x; D:{−1,0,1,3}
Click here to see answer by greenestamps(13200)

Question 1169964: Write an equation in slope-intercept form for the line that satisfies each set of
conditions
Passes through (4, 2), perpendicular to y= - 2x + 3
Click here to see answer by greenestamps(13200)

Question 1169999: Lisa has only nickels and dimes in her money box. She knows that she has less than $15 in the box. Let extra present the number of nickels in the box and why represent the number of dimes in the box. Which of the following statements best describes the steps to graph the solution to the in equality in X and why
Click here to see answer by josgarithmetic(39617)

Question 1170025: which equation is the slope intercept form of the line that passes through (6,-11) and is parallel to the graph of y=-2/3x + 12
Click here to see answer by josgarithmetic(39617)

Question 1169985: Solve. Use a graphing calculator if necessary. See Examples 9-11. (Objective 8)
The cost C in dollars of operating a certain concrete-cutting machine is related to the number of minutes n the machine is run by the function
C(n) = 1.2n2 − 24n + 690.
For what number of minutes is the cost of running the machine a minimum? What is the minimum cost?
Question: The minimum cost is $ ?for
minutes?
Click here to see answer by Theo(13342)

Question 1170003: Solve the following pair of equations graphically.
2x - 3y = 1
1.25 x + 0.5y = 3

Click here to see answer by ankor@dixie-net.com(22740)

Question 1170053: Hello there, I need help graphing the function f(x)=log1/6(x). Thank you
Click here to see answer by ikleyn(52781)

Question 1170204: f(x) = -3(x - 4)(x - 10)
Click here to see answer by ankor@dixie-net.com(22740)

Question 1170236: form 9x+3y-6 = 0 Of Ax+By=C
Click here to see answer by ikleyn(52781)

Question 1170236: form 9x+3y-6 = 0 Of Ax+By=C
Click here to see answer by greenestamps(13200)

Question 1170253: What is the equation of the line through the point (-3 , 2) and has x
intercept at x = -1.
Click here to see answer by josgarithmetic(39617)

Question 1170253: What is the equation of the line through the point (-3 , 2) and has x
intercept at x = -1.
Click here to see answer by MathTherapy(10552)

Question 1170253: What is the equation of the line through the point (-3 , 2) and has x
intercept at x = -1.
Click here to see answer by ikleyn(52781)

Question 1170354: Calculate the slope of a line containing the point (-20, -4) and (-12, -10)
Click here to see answer by MathLover1(20849)

Question 1170413: Good day may you please assist me in the following
solve the following pair of equations graphically
2x - 3y = 1
1.25x + 0.5y = 3

Click here to see answer by ikleyn(52781)

Question 1170439: Find an equation for the parabola that has its vertex at the origin and satisfies the given condition.
Directrix y = 1/6

Click here to see answer by MathLover1(20849)

Question 1170689:
Click here to see answer by ikleyn(52781)

Question 1170729: Write a compound inequality to represent all of the numbers between -4 and 6.
Click here to see answer by MathLover1(20849)

Question 1170731: Graph the line with slope -4 and y-intercept -1

Click here to see answer by MathLover1(20849)

Question 1170731: Graph the line with slope -4 and y-intercept -1

Click here to see answer by ankor@dixie-net.com(22740)

Question 1170891: solve the following pair of equations graphically.
2x-3y=1
1.25x+0.5y=3
Click here to see answer by math_helper(2461)

Question 1170901: (-6,-18) and (-2,-8)
Click here to see answer by Alan3354(69443)

Question 1171000: On the below 4 equations, can you show me the steps either by substitution or addition method to determine the 2 digit graph intersection points on a graph?
Problem 1:
x+2y = 15
x-2y = -9
Problem 2:
x-y = 0
7x-3y = 24
Problem 3:
3x-8y = 10
x-4y = 3
Problem 4:
2x+3y = -5
3x-y = 20
Thank you
Click here to see answer by MathLover1(20849)

Question 1171130: Water consumption. Americans are buying more bottled water than ever before. At the time of this writing, the average American buys more bottled water than milk, coffee, or beer. In 2003, the average American purchased 76.4 gal of soft drinks and water. The amount of water was only 4.3 gal less than half of the amount of soft drinks.
How many gallons of water and how many soft drinks did the average American buy in 2003?

Click here to see answer by Theo(13342)

Question 1171180: write an equation in point slope form for the line with a slope of -9 that passes through (1,-3)
Click here to see answer by ikleyn(52781)

Question 1171246: X-2Y=4
5X+6Y=3
Click here to see answer by josgarithmetic(39617)

Question 1171248: 2X-3Y=6
X+4Y=8
Click here to see answer by josgarithmetic(39617)

Question 1171247: Graph system below and write solution
2x+y=4
y=-1/3x-1
Click here to see answer by Solver92311(821)

Question 1171369: I have a graph that I need help writing an equation for.
Please help
https://imgur.com/a/x5zqLQx
Click here to see answer by Alan3354(69443)

Question 1171369: I have a graph that I need help writing an equation for.
Please help
https://imgur.com/a/x5zqLQx
Click here to see answer by Theo(13342)

Question 1171435: y =sqrt3x-4000x^2/9537
How far downrange does the cannonball travel?

Click here to see answer by greenestamps(13200)

Question 1171477: Could you verify if I have corrected determined the correct type of linear equation graph along with the common solution coordinates of the graph (which I cannot attach)to below problems?
Graph and label these systems of linear equations. State whether they are consistent, inconsistent or dependent. If they are consistent, give the common solutions of where they intersect on graph.
Problem 1:
x-y= 4
5x-3y= 8
After working and plotting this graph it is: Consistent graph with solution of -2, -6
Problem 2:
2x-y= 2
3x-y= 18
After working and plotting this graph it is: Consistent graph with solution of: 4, 6
Problem 3:
x+3y= 9
2x+6y= 14
After working and plotting this graph it is: Inconsistent graph with no intersection (2 parallel lines plotted side by side on graph).
Thank you

Click here to see answer by ikleyn(52781)

Question 1171478: Given (x, 3) and (2, -4) and m= -5/2, find x.
Click here to see answer by josgarithmetic(39617)

Question 1171478: Given (x, 3) and (2, -4) and m= -5/2, find x.
Click here to see answer by MathTherapy(10552)

Question 1171496: I'm trying to write an equation for this graph.
Thank you for any help

https://imgur.com/a/w6FEw65
Click here to see answer by josgarithmetic(39617)

Question 1171542: A. Solve the systems of equation by a)graphing b) elimination c) substitution
Eq. 1: 2× - 3y = -1 ; Eq. 2: y= × - 1
B. Solve the problem using any method
The sum of two numbers is 32 and the difference is 2. Find the numbers

Solve the following the following systems by graphing
1. 2x + y = 5 and x - 3y = -8
2. 6x - 3y = -9 and 2x + 2y = -6
By substitution

3. y = 5x - 3 and -x - 5y = -11
4. 2x - 6y = -24 and x = 5y - 22
By elimination
5. -4x - 2y = -2 and 4x + 8y = -24
6. x - y = 11 and 2x + y = 19
Solve the problem involving the systems of linear equation un two variables
1. Your mother bought 20 kilos of mangoes and atis combined. Mango is P60.00 per kilo and atis P40.00 per kilo. If she paid P1000.00 for 20 kilos,how many kilos of each kind mother bought?
(A) If x is number of kilos of mango and number of kilos of atis ,then the equation is: ___________
(B) Equation for the cost of fruits: _________
(C) The system of equation are ___________ and ____________
(D) Solve by any method.
(€) Check if your result will satisfy the problem.

Click here to see answer by greenestamps(13200)

Question 1171592: I need help writing an equation for this graph please.

https://imgur.com/a/bKYs8v2
Click here to see answer by math_tutor2020(3816)

Question 1171592: I need help writing an equation for this graph please.

https://imgur.com/a/bKYs8v2
Click here to see answer by MathTherapy(10552)

Question 1171777: If a graph is symmetric with respect to the origin
and it contains the point (-4, 7), which of the
following points is also on the graph?
Click here to see answer by Solver92311(821)

Question 1171809: If x+y<16 but x-y>6, where x and y are integers, what is the largest integral value of xy?
Click here to see answer by Edwin McCravy(20055)

Question 1171938: -2 and y intercept is (0,3)
Click here to see answer by Alan3354(69443)

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, 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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