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

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Question 1046917: Solve the inequalities by graphing
y<=4x-1
y>3x-1
Click here to see answer by Boreal(15235)

Question 1047039: What is the vertex of 2x^2+4-6

Click here to see answer by Boreal(15235)

Question 1047039: What is the vertex of 2x^2+4-6

Click here to see answer by Alan3354(69443)

Question 1046934: If the first and third digits if a three-digit number are interchanged, the difference between the original number and the new one is 198. If the first and second digits of the original are interchanged, the new one is 90 less than the original. The difference between the first and third digits is equal to the second digit. Find the original number.
Click here to see answer by MathTherapy(10551)

Question 1047100: 1. x+y=-4
y=x^2-3

2. y=x^2
x^2+y^2-4y=0
3. x^2+y^2=5
x^2+2y^2+x=8
4. 3x^2+y^2=15
x^2-y^2+y=5

Click here to see answer by ikleyn(52778)

Question 1047099: 1. x^2+y^2=16
x^2+2y^2=25

2. y=x^2+5x-7
y-x=5

Click here to see answer by ikleyn(52778)

Question 1047098: y=x^2
1+y=2x
Click here to see answer by ikleyn(52778)

Question 1047097: y=x^2
x^2+y=24
Click here to see answer by ikleyn(52778)

Question 1047096: x^2+y^2=8
2x^2+y^2=12
Click here to see answer by ikleyn(52778)

Question 1047095: y=5x
xy=25
Click here to see answer by ikleyn(52778)

Question 1047094: xy=14
x+y=9
Click here to see answer by ikleyn(52778)

Question 1047153: Sketch graph of -5x+3y=15 by plotting ordered pair solutions.
please help me by showing graph with solutions
Click here to see answer by Boreal(15235)

Question 1047153: Sketch graph of -5x+3y=15 by plotting ordered pair solutions.
please help me by showing graph with solutions
Click here to see answer by josmiceli(19441)

Question 1047151: Solve the compound inequality. Write the solution set using interval notation and graph the solution set on a number line: -4<2(x-3)≤4.

Please show me the steps to solving this as well as graph the set on a number line. I'm trying to solve this now for awhile. Thanks for your help.
Click here to see answer by Boreal(15235)

Question 1047270: What's the answer of 2+9n=74
Click here to see answer by solver91311(24713)

Question 1047274: Graph the equation.
8x−5y=0
Click here to see answer by Boreal(15235)

Question 1047405: 3.2d-17.88=-d+30
Click here to see answer by Boreal(15235)

Question 1047427: X-2Y = 6 When solve for Y my answers don�t work in the original equation.
Click here to see answer by Alan3354(69443)

Question 1047429: X-2Y = 6 is the equations I need to graph. When I solve for Y, my answers don�t work in the original equation.
Click here to see answer by ikleyn(52778)

Question 1047471: I don't actually know what the question is asking me.
If f(x) = 7x^2-2x+5 find
a f(-1/5)
b f(p^3)
Am I supposed to be finding range/domain or actually plotting this on a graph? I hate these kinds of questions, I need it to be spelled out exactly what I'm trying to find.
Click here to see answer by MathLover1(20849)

Question 1047480: Write an equation (a) in standard form and (b) in slope intercept form for the line described.
48) through (-2,0), perpendicular to 8x-3y=7
Click here to see answer by ewatrrr(24785)

Question 1047485: When the Celsius temperature is 0 degrees, the corresponding Fahrenheit temperature is 32 degrees. When the Celsius temperature is 100 degrees, the corresponding Fahrenheit temperature is 212 degrees. Let C represent the Celsius temperature and F the Fahrenheit temperature.
A) Express F as an exact linear function of C.
B) Solve the equation in part (a) for C, thus expressing C as a function of F.
c) For what temperature if F=C a true statement?
Click here to see answer by Boreal(15235)

Question 1047478: Write an equation (a) in standard form and (b) in slope intercept form for the line described.
45) through (-1,4), parallel to x+3y=5
Click here to see answer by josgarithmetic(39617)

Question 1047497: x+y=8;x-y=2 simeltenious equations using graphical method
Click here to see answer by MathLover1(20849)

Question 1047499: x+y=8;x-y=2
Click here to see answer by stanbon(75887)

Question 1047499: x+y=8;x-y=2
Click here to see answer by Boreal(15235)

Question 1047532: New to this. I determine the slope of the line 4x-7y+19=0.
I feel like I missed something. I solved the equation to get 19/7, and then got stuck. I then replaced x with -1 and 1 and I think I ended up with a slope of 0.57143 rounded. Am I right when I substitute x, I am changing the other side of the equation to reflect what x now is?
Click here to see answer by josgarithmetic(39617)

Question 1047584: What is the equation of this graph?
graph: https://s10.postimg.org/ezj5l0yuh/Graph.png
A.)
B.)
C.)
D.)

Click here to see answer by josgarithmetic(39617)

Question 1047592: ordered pair (x,y) y=-2x+1 x y
0
-3
1
Click here to see answer by ikleyn(52778)

Question 1047679: (9,-1) (-4,-3)
Find the slope

Click here to see answer by Alan3354(69443)

Question 1047739: Find an equation of the vertical line through (-3,9)
Click here to see answer by solver91311(24713)

Question 1048040: (7,46)equation:y=7*-4
Click here to see answer by Alan3354(69443)

Question 1048064: I do not understand how to hope the solutions for the inequality of x<3
Click here to see answer by advanced_Learner(501)

Question 1048065: I do not understand how to graph the solutions for the inequality of x<3
Click here to see answer by stanbon(75887)

Question 1048068: I don't understand how to graph the solutions for the inequality of x< or equal to -5.
Click here to see answer by Alan3354(69443)

Question 1048070: What part of the graph do I shade for the inequality of x is greater than or equal to 0? Thank u!
Click here to see answer by stanbon(75887)

Question 1048084: How do you graph the solution of the inequality of y < or equal to x+4? Thanks!
Click here to see answer by ikleyn(52778)

Question 1048072: How do you graph the solutions to the inequality of y
Click here to see answer by Alan3354(69443)

Question 1048072: How do you graph the solutions to the inequality of y
Click here to see answer by ikleyn(52778)

Question 1047970: The point (-12, 4) is on the graph of y=f(x). Find the corresponding point on the graph of y=g(x). What are the corresponding points for g(x)=f(x)-2?

Click here to see answer by Alan3354(69443)

Question 1048200: Find the X and Y intercepts of the graph of the given equations:
A. Y=4x+8
B. 3x+2y=7
Click here to see answer by Alan3354(69443)

Question 1048295: if f(x^2 +1)=x^4+5x^2+3. what is f(x^2 -1)
Click here to see answer by robertb(5830)

Question 1048357: determine whether the ordered pair (4,5) is a solution for the system 2x-y=3
5x+4y=40
Click here to see answer by solver91311(24713)

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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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, 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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