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

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Question 1151663: Solve system by graphing
2x + y > 3
x - y < 1
Click here to see answer by Alan3354(69443) About Me 
Question 1151665: https://answers.yahoo.com/question/index?qid=20200126203932AA1DiHC
6
Click here to see answer by MathLover1(20849) About Me 
Question 1151762: How can you see if 2x-y=1 have one solution.
Click here to see answer by ikleyn(52781) About Me 
Question 1151764: Calculate the limit algebraically. (If you need to use or - , enter INFINITY or - INFINITY, respectively. If an answer does not exist, enter DNE.)
lim
x→+∞ x^6 + 2,000x^3 + 2,000,000/4x^6+3,000x^3
Click here to see answer by MathLover1(20849) About Me 
Question 1151763: Use a graph of f or some other method to determine what, if any, value to assign to f(a) to make f continuous at x = a.
f(x)= x^2+6x+5/x+5 ; a=-5
Click here to see answer by MathLover1(20849) About Me 
Question 1151797: Graph y=4x-9
Click here to see answer by MathLover1(20849) About Me 
Question 1151834: If f(f(x)) = x² find f(x)?
Click here to see answer by Edwin McCravy(20055) About Me 
Question 1151833: Let f(x) be an even function that has period 0.3 and f(2)= 5f(-4)+2
Then f(7)=......
Click here to see answer by Edwin McCravy(20055) About Me 
Question 1151832: Let f(x) be an even function that has period 0.3 and f(2)= 5f(-4)+2
Then f(7)=......
Click here to see answer by Edwin McCravy(20055) About Me 
Question 1151896: write an equation in standard form using only integers for the line described.
The line through (0,3), perpendicular to y= 3/2x + 2
Click here to see answer by josmiceli(19441) About Me 
Question 1151896: write an equation in standard form using only integers for the line described.
The line through (0,3), perpendicular to y= 3/2x + 2
Click here to see answer by MathLover1(20849) About Me 
Question 1151957: Find an equation of the line containing the given pair of points in​ point-slope form.
​(1​,5​) and ​(3​,6​)
Click here to see answer by josgarithmetic(39617) About Me 
Question 1151957: Find an equation of the line containing the given pair of points in​ point-slope form.
​(1​,5​) and ​(3​,6​)
Click here to see answer by MathLover1(20849) About Me 
Question 1152023: A woman can hike 4mph faster down a trail to Archuletta Lake than she can on the return trip uphill. It takes her 4hr to get to the lake and 6hr to return. What is her speed hiking down to the lake?
Click here to see answer by josgarithmetic(39617) About Me 
Question 1152074: 3x-y=9
Click here to see answer by MathLover1(20849) About Me 
Question 1152074: 3x-y=9
Click here to see answer by ikleyn(52781) About Me 
Question 1152111: Find the area of the region bounded by the y-axis, x-axis and the line y=−2x+4.
Click here to see answer by math_helper(2461) About Me 
Question 1152111: Find the area of the region bounded by the y-axis, x-axis and the line y=−2x+4.
Click here to see answer by MathLover1(20849) About Me 
Question 1152278: O.k so I have this rational function f(x)=x^2-x-2/4x+8, I am having trouble finding the oblique asymptote. When I perform long division a began by factoring the denominator in the form 4(x+2) because I believe it needs to be in the form x-c. I then carry out the division like normal I end up with a quotient of x-3 with a remainder of 4. My question is what happens with the 4 that I factored in the divisor? When I check the equation for the slant asymptote in my calculator it does not match up.
Click here to see answer by Boreal(15235) About Me 
Question 1152329: Using a table of values, determine the solution to the equation below to the nearest fourth of a unit.
(-x) x+2
2 +1=5
the top part is the exponents
Click here to see answer by MathLover1(20849) About Me 
Question 1152455: What is the area enclosed by the graph |x|+|y|= 4?
Click here to see answer by MathLover1(20849) About Me 
Question 1152701: There were 610 people at a play. The admission price was $3.00 for adults and $1.00 for children. The admission receipts were $1230. How many adults and children attended?
Click here to see answer by josgarithmetic(39617) About Me 
Question 1152701: There were 610 people at a play. The admission price was $3.00 for adults and $1.00 for children. The admission receipts were $1230. How many adults and children attended?
Click here to see answer by Alan3354(69443) About Me 
Question 1152743: 2^+3y=9
Click here to see answer by josgarithmetic(39617) About Me 
Question 1152744:
Click here to see answer by josgarithmetic(39617) About Me 
Question 1152757: what is the equation of the line with x-intercept (-4,0) and y-intercept (0,9)
Click here to see answer by MathLover1(20849) About Me 
Question 1152875: let x and y are acute angles, tan(x). tan(y) =1,
tan(x) - tan(y) = 2 × sqrt(3) prove that x=5y
Click here to see answer by ikleyn(52781) About Me 
Question 1152945: A telephone calling card charges a connection fee,plus a charge per minute. A 5-minute call cost $2.98. A 15-minute call costs $7.18. What is the cost of the connection fee?
2, find the solution:
y=3/5x+7
y=3/5x-1
A infinitely many solutions
B 0
c.8
d. no solution
3. which equator represents a linear function?
a. y=1/x
b. y=2x-3
c.y=5x^3+8
d.y=x^2x+1
Click here to see answer by josgarithmetic(39617) About Me 
Question 1152945: A telephone calling card charges a connection fee,plus a charge per minute. A 5-minute call cost $2.98. A 15-minute call costs $7.18. What is the cost of the connection fee?
2, find the solution:
y=3/5x+7
y=3/5x-1
A infinitely many solutions
B 0
c.8
d. no solution
3. which equator represents a linear function?
a. y=1/x
b. y=2x-3
c.y=5x^3+8
d.y=x^2x+1
Click here to see answer by ikleyn(52781) About Me 
Question 1152943: which data is most likely show a negative correlation when graphed on a scatterplot?
a. address of home and eye color
b. favorite color and favorite food
c.age of vehicle and value of vehicle
d. miles traveled and time spent driving
Click here to see answer by MathLover1(20849) About Me 
Question 1152959: find an equation for the line perpendicular to x+y=16 with y intercept (0,-33) write the answer in slope intercept form
Click here to see answer by josgarithmetic(39617) About Me 
Question 1153111: let Z a complex number, if |Z|=1 then Re(1/(1-Z)) is.....
Click here to see answer by ikleyn(52781) About Me 
Question 1153150: How do you know if the end behaviors of a graph will be going in the same or different directions?
Click here to see answer by Theo(13342) About Me 
Question 1153268: Please some help
Find f '(a).
f(t) =
2t + 4
t + 9
Click here to see answer by MathLover1(20849) About Me 
Question 1153266: Please help me
If the tangent line to y = f(x) at (4, 3) passes through the point (0, 2), find f(4) and f '(4).
f(4) =
f '(4) =

Click here to see answer by MathLover1(20849) About Me 
Question 1153427: What are the x and y intercepts of these equations
1. f(x)={√x^2, -3≤ x< 0 {x^2 , 0≤ x ≥ 2
2. f(x)={2x, -3≤ x< 0 {1, 0≤ x ≥ 4
3. f(x)={x, 0≤ x< 5 {x-1, -2≤ x ≥ 2
Click here to see answer by greenestamps(13200) About Me 
Question 1153545: Hi, I'm trying to find the absolute minimum and maximum values of +f%28x%29+=+e%5E%28-x%5E2%29+ when +-4+%3C=+x+%3C=+3+. I started by finding the derivative, but I'm struggling when I set the derivative equal to 0. I can find decimal values with my calculator, but need the exact form. Can someone walk me through it?
Thanks!!
Click here to see answer by ikleyn(52781) About Me 
Question 1153575: I can’t find the x- and y-intercepts of this equation: 4y+%2B+5x+=+2y+-+3x+%2B+16. I have already tried finding the X intercept by replacing all of the Y coefficients in the equation with 4(0) and 2(0) and, after simplifying everything, I got: -5x= -3x+16. So I did what I thought I should have done, which was dividing -5X by -5 to isolate the variable, and did the same on the other side. But, I am not sure as to where to put the other (divided by -5). So I tried both: %28-5x%29%2F-5=%28-3x%2B16%29%2F-5 and %28-5x%29%2F-5=%28-3x%29%2F-5%2B16%2F-5. The first one resulted in x=0.6x and the second one became x=0.6x-3.2, I think. I don’t know what to do with this, please help.
Click here to see answer by Alan3354(69443) About Me 
Question 1153575: I can’t find the x- and y-intercepts of this equation: 4y+%2B+5x+=+2y+-+3x+%2B+16. I have already tried finding the X intercept by replacing all of the Y coefficients in the equation with 4(0) and 2(0) and, after simplifying everything, I got: -5x= -3x+16. So I did what I thought I should have done, which was dividing -5X by -5 to isolate the variable, and did the same on the other side. But, I am not sure as to where to put the other (divided by -5). So I tried both: %28-5x%29%2F-5=%28-3x%2B16%29%2F-5 and %28-5x%29%2F-5=%28-3x%29%2F-5%2B16%2F-5. The first one resulted in x=0.6x and the second one became x=0.6x-3.2, I think. I don’t know what to do with this, please help.
Click here to see answer by MathTherapy(10552) About Me 
Question 1153620: 2x-y=2
Click here to see answer by MathLover1(20849) About Me 
Question 1153631: I'm having trouble graphing f(x)=2x/x-4
Click here to see answer by josgarithmetic(39617) About Me 
Question 1153649: Line l contains the point (5,-3) and has a graph parallel to the graph of 2x-5y=10. Find the equation for l.
Click here to see answer by MathLover1(20849) About Me 
Question 1153685: Consider the line y = -5x + 4.
(a) Find the equation of the line that is parallel to this line and passes through the point (6, 2).
(b) Find the equation of the line that is perpendicular to this line and passes through the point (6, 2).

Thank you so much!!

Click here to see answer by josgarithmetic(39617) About Me 
Question 1153720: The graph of the function approaches the positive x-axis. When a graph approaches a line, we call the line a(n) ____________. What is it? Thanks
Click here to see answer by MathLover1(20849) About Me 
Question 1153750: The graph of the function approaches the positive x-axis. When a graph approaches a line, we call the line a(n) ____________. Fill the blank. Thanks
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, 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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, 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