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

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Question 1039933: Restricting the domain to make a one-to-one function.
can someone help me for this please? i really don't know. help me :(
Click here to see answer by Boreal(15235)

Question 1039950: hello can you help me on how to find three points for the equation -4y=-5x-18 thank you
Click here to see answer by solver91311(24713)

Question 1039950: hello can you help me on how to find three points for the equation -4y=-5x-18 thank you
Click here to see answer by Tatiana_Stebko(1539)

Question 1040040: Graph the rational function F(x)= -6/(-x+3)
Click here to see answer by josgarithmetic(39616)

Question 1040058: y=1/4x-3

Click here to see answer by addingup(3677)

Question 1040100: y = -x*2/8 + 11x/8 + 3/2
Find the equation of the axis of symmetry, explaining your method. Use this information to find the coordinates of the vertex, giving your answers to one decimal place.
Click here to see answer by Alan3354(69443)

Question 1040148: Find the exponential equation for a graph containing these points (0,-2), (1,3) and (-5,-3)
Click here to see answer by ankor@dixie-net.com(22740)

Question 1040252: y=k(x-4)(x+2)
The graph of the quadratic equation above, where k is a constant, has a vertex at point (a,b) in the xy-plane. Which of the following is equal to a?
Click here to see answer by josgarithmetic(39616)

Question 1040304: What is the solution set for -3(x-5)<7

Click here to see answer by ikleyn(52776)

Question 1040360: Is 5y=2x+3 parallel or perpendicular
Click here to see answer by ikleyn(52776)

Question 1040380: I don't understand the shading portion of this particular question that I have. It is 6x - y> -4 and -x + 4y less than or equal to 6. It wants me to graph and show what part of the graph needs to be shaded.
Click here to see answer by josgarithmetic(39616)

Question 1040432: What does the equation 9x-4y=36 when it's on a graph?
Click here to see answer by ikleyn(52776)

Question 1040439: Solve each compound inequality, write it's solution set in interval notation, and graph the solution set on a number line.
-55/6 < -5/2x < or= 5
Click here to see answer by Boreal(15235)

Question 1040443: 6x-5y=30=0
Click here to see answer by ikleyn(52776)

Question 1040534: Given the equation below, find four ordered pair solutions by completing the table, showing all work in the space below. Then use the ordered pairs to graph the equation. You may use the grid below or attach your own.
y=2/5x-4
Show work below:
Table:
x y
0 ?
5 ?
? 0
? -6
I need to answer for the question marks and solve the equation:
y = 2/5x - 4
Click here to see answer by stanbon(75887)

Question 1040533: Given the equation below, find four ordered pair solutions by completing the table, showing all work in the space below. Then use the ordered pairs to graph the equation. You may use the grid below or attach your own.
y=7x-2
Show work below:
table:
x y
0
2
0
5

Click here to see answer by ikleyn(52776)

Question 1040547: I"m asked to write the equation in slope-intercept form for a line which passes through the points (5,�3) and (2, 9).
I've come up with y = -4x + 17...am I on the right track?
I appreciate your help!
Click here to see answer by ikleyn(52776)

Question 1040546: I'm having some trouble with this problem and could use your help!
Points (�1, 0) and (�9, �8) are endpoints of the diameter of a circle.
(a) What is the length of the diameter?
(b) What is the center point C of the circle?
(c) Given the point C you found in part (b), state the point symmetric to C about the x-axis.
am I using the distance formula: sqrt((x2-x1)^2 + (y2-y1)^2)
any help or guidance on this would be amazing, thank you!

Click here to see answer by josgarithmetic(39616)

Question 1040558: I know how to graph and substitute but I just can't figure out this "if" statements, I have no clue on what to do here:
Let h be the function which is the set of all ordered pairs (x,y) such that:
Y= x+5 if x ≤ - 3
Y= √9-x^2 if -3 ≤ x ≤ 3
Y= 5-x if 3 < 3
I tried solving the first one, I used -4,-5,-6,-7,-8 as my x (assuming that I'm correct with the "if" part) I computed it and y became -1,0,-1,-2,-3 .Is this correct?
Also with number 2 , I have no idea how to do that one. Please help me.
Click here to see answer by josgarithmetic(39616)

Question 1040648: Graph the line with the slope 3/2 and y-intercept (0,-2. Here is what I have done.
m=r/r=3/2, y=0,-2)The rise would be 2/3 and the run is (3,3)with my y=(0,-2). I am having trouble graphing it. The tools on the graph r not letting me perform just the dots without putting the line. I have spent way to many hours on this problems. Help me ,Please?
Click here to see answer by Fombitz(32388)

Question 1040668: how do I graph this equations y=-2x

Click here to see answer by Fombitz(32388)

Question 1040699: X^2/16 + y^2/64=1
Click here to see answer by ikleyn(52776)

Question 1040703: Find the slope-intercept equation of the line passing through (1,2) with a slope of m=3
Click here to see answer by stanbon(75887)

Question 1040703: Find the slope-intercept equation of the line passing through (1,2) with a slope of m=3
Click here to see answer by Aldorozos(172)

Question 1040704: Solve the following equation |x|=3

Click here to see answer by stanbon(75887)

Question 1040704: Solve the following equation |x|=3

Click here to see answer by Aldorozos(172)

Question 1040705: Evaluate the following expression when x= 3 and y =2
2xy -x^2y
Click here to see answer by stanbon(75887)

Question 1040705: Evaluate the following expression when x= 3 and y =2
2xy -x^2y
Click here to see answer by Aldorozos(172)

Question 1040706: solve the inequality below and write the solution in interval notation
|2m+3|<13
Click here to see answer by stanbon(75887)

Question 1040706: solve the inequality below and write the solution in interval notation
|2m+3|<13
Click here to see answer by Aldorozos(172)

Question 1040706: solve the inequality below and write the solution in interval notation
|2m+3|<13
Click here to see answer by ikleyn(52776)

Question 1040707: Solve the system of equations given below
X+ 3z=12
-x -2y+z=10
3x+5y+2z=-7
Click here to see answer by stanbon(75887)

Question 1040740: What is the domain of the inverse of y=4^x
Click here to see answer by robertb(5830)

Question 1040739: Sketch the graph of y=4^x Name the graph and show all intercepts with the axes.
Click here to see answer by Boreal(15235)

Question 1040769: Can you identify the equation in this graph?
Graph & Equations: https://i.imgsafe.org/5448e6660c.png
Click here to see answer by Fombitz(32388)

Question 1040783: Can you identify the graph which displays this function?
Graph & Function: https://i.imgsafe.org/544d340994.png

Click here to see answer by solver91311(24713)

Question 1040796: Whats an example of an equation of a trigonometric function which has a phase shift of �-45�. Can you attach a graph of this function that includes its parent graph?
Click here to see answer by Boreal(15235)

Question 1040801: Compute the determinant
4 0 -1
3 6 -2
-2 5 1
Click here to see answer by Boreal(15235)

Question 1040802: At what X values does the parabola Y=x^2-5x+4 intersect the x axis?
Click here to see answer by Boreal(15235)

Question 1040803: Complete the following table for the equation y=x-3
X Y
-1 ?
0 ?
4. ?
Click here to see answer by Boreal(15235)

Question 1040803: Complete the following table for the equation y=x-3
X Y
-1 ?
0 ?
4. ?
Click here to see answer by jim_thompson5910(35256)

Question 1040799: Do the following two lines intersect? Answer yes or no, together with the point, if any
5x+8y=-5
-X-1.6y=14
Click here to see answer by Boreal(15235)

Question 1040840: y^2(1-x)=x^2(x+1)
what is this relation called?
Graph the relation
Click here to see answer by ikleyn(52776)

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