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

Tutors Answer Your Questions about Graphs (FREE)

Question 1134977: What are the domain and range of the function?
f(x) = √x + 6
Is my answer correct?
The question and my answer are in the link here: https://prnt.sc/mmf23d
Click here to see answer by Boreal(15235)

Question 1134825: Complete the chart and find equations describing the trig function:
X values: 4, 4.9, 5.8, 6.7, 7.6
Y values: 13, 4.5, -4, 4.5, 13
A:
B:
C:
D:
Write in form y=d+acos(b(x-c))
Click here to see answer by greenestamps(13200)

Question 1135057: Find an equation for the line with the given properties, express the equation in general form.
slope = -1/3 ; containing the point (1,6)
Click here to see answer by Alan3354(69443)

Question 1135058: graph the line that contains the point P and has slope m. find the slope form of the equation of the line.
p=(8,1) ; M=6
Click here to see answer by Alan3354(69443)

Question 1135056: Graph the line that contains the point P and has slope M. then Find the point slope form of the equation of the line.
P=(3,2) ; M=-1/4
Click here to see answer by Alan3354(69443)

Question 1135089: x-3x^((1)/(2))-10=0
SOLVE BY SUBSTITUTION

Click here to see answer by ikleyn(52778)

Question 1135104: Show that is always positive for all values of x
Click here to see answer by ikleyn(52778)

Question 1135103: Prove that the graph touches the x-axis for all values of k except k=1
Click here to see answer by Theo(13342)

Question 1135151: Graphing the line with slope 2/3 passing through the point (2,3)
Click here to see answer by Alan3354(69443)

Question 1135161: Hello I am graphing the vertex and axis of symmetry and I understand how to find it, but how about when the vertex is a fraction? How would I graph the vertex? (if x and y are in fraction form)
Click here to see answer by greenestamps(13200)

Question 1135292: A=1/2w(b+c) for c

Click here to see answer by MathLover1(20849)

Question 1135305: Given the function and f(x)<0 when . Find the values of m and n
Click here to see answer by Theo(13342)

Question 1135274: solve: x + tan (x) = 0 on [π/2 , π ]
Click here to see answer by Alan3354(69443)

Question 1135274: solve: x + tan (x) = 0 on [π/2 , π ]
Click here to see answer by ikleyn(52778)

Question 1135438: Solve the following system of equations using either the algebraic substitution method or the addition/subtraction method. Express your answers as exact values, using fractions where needed.
−6 y+4 x=-6
−24 y=-24−16 x
Enter your answers in the form (x,y). Make sure your answer is in parenthesis and that x and y are separated with a comma.
If the system is inconsistent, enter the word: inconsistent.
If the system is dependent enter the word: dependent.
For both of these responses, make sure you use lowercase letters and do not put the words in parenthesis .
Click here to see answer by josgarithmetic(39617)

Question 1135437: Solve the following system of equations using either the algebraic substitution method or the addition/subtraction method. Express your answers as exact values, using fractions where needed.
8 x−2 y=-4
-2=9 y+x
Enter your answers in the form (x,y). Make sure your answer is in parenthesis and that x and y are separated with a comma.
If the system is inconsistent, enter the word: inconsistent.
If the system is dependent enter the word: dependent.
For both of these responses, make sure you use lowercase letters and do not put the words in parenthesis .
Click here to see answer by josgarithmetic(39617)

Question 1135450: Most insurance companies will replace a vehicle any time an estimated repair exceeds 80% of the "blue-book" value of the vehicle. Michelle's insurance company paid $7100 for repairs on her car after an accident. What can be concluded about the blue-book value of the car?
The 'blue book' value of Michelle's car___$____
(Type an inequality symbol and then an integer.)
Click here to see answer by Theo(13342)

Question 1135542: The temperature of the liquid starts at 72°F and drops 2 degrees per second. The liquid is not to
go below 40°F. Let s represent the number of seconds.
Click here to see answer by ikleyn(52778)

Question 1135540: The number of wild flowers growing each year in a meadow is modeled by the function f(x).
f(x) = 1000/1 + 9e^-0.4x
Which statements are true about the population of wild flowers?
Select EACH correct answer.
Is my answer correct?
The question and my answer are in the link here: https://prnt.sc/mq26an
Click here to see answer by Boreal(15235)

Question 1135549: The length of a rectangle is 6 inches longer than it is wide. If the area is 135 square inches, what are the dimensions of the rectangle?
Click here to see answer by Alan3354(69443)

Question 1135550: Find b and c so that y=-15x^2+bx+c has vertex (-10,0)?
Click here to see answer by jim_thompson5910(35256)

Question 1135660: The student council is sponsoring a concert as a fund raiser. Tickets are $3 for student and $5 for adult. The student council wants to raise at least $1000. If 200 student attend, how many adults must attend?
Click here to see answer by josgarithmetic(39617)

Question 1135886: Please i need a well explanation on how to find a median from a bar chart
Click here to see answer by MathLover1(20849)

Question 1135928: if cos(π/5)cos(2π/5)=1/4 then cos(π/5)=………
Click here to see answer by ikleyn(52778)

Question 1135932: The information below is a table.
Number of students: 2, 5 , 10, 9, 8, 6
Marks : 0, 1, 2, 3, 4, 5.
1. Draw a bar chart to show this information
2. Find the mean, mode and median(please explain the median in details).
Click here to see answer by jim_thompson5910(35256)

Question 1136022: Find the slope of the line passing through the points (-5, -2) and (3, -9)
Click here to see answer by jim_thompson5910(35256)

Question 1136070: the sum of 100 the difference of 6
Click here to see answer by ikleyn(52778)

Question 1136382: A farmer is going to divide her 60 acre farm between two crops. Seed for crop A costs $20 per acre. Seed for crop B costs $40 per acre. The farmer can spend at most $2200 on seed.
If crop B brings in a profit of $190 per acre, and crop A brings in a profit of $110 per acre, how many acres of each crop should the farmer plant to maximize her profit?
Click here to see answer by ikleyn(52778)

Question 1136412: prove that: cos(sin(x))> sin(cos(x))
Click here to see answer by Alan3354(69443)

Question 1136590: solve the inequality 3x-1>[2x-3]
Click here to see answer by Saffana(5)

Question 1136590: solve the inequality 3x-1>[2x-3]
Click here to see answer by greenestamps(13200)

Question 1136619: Let the width and the length be real numbers .The perimeter remains constant 24 cm. Draw the graph for 1≤ w ≤ 11
Label the axes appropriately
Click here to see answer by Saffana(5)

Question 1136409: find value of n , m ,
if int(2x+5)dx=36 in [n,m] and int(2x+5)dx=60 in[n-1, m+1]
Click here to see answer by greenestamps(13200)

Question 1136647: Need help putting (6,-3),(-2,-3) in standard form, I'm confused on how to solve the problem
Click here to see answer by ikleyn(52778)

Question 1136647: Need help putting (6,-3),(-2,-3) in standard form, I'm confused on how to solve the problem
Click here to see answer by josgarithmetic(39617)

Question 1136649: The Jurassic Zoo charges $9 for each adult admission and $7 for each child. The total bill for the 119 people from a school trip was $885. How many adults and how many children went to the zoo?
Click here to see answer by ikleyn(52778)

Question 1136739: If f(x) = x/sqr(1+x^2), prove by mathematical induction for n>=2 that f(f(...(f (x))...)) = x/sqr(1+nx^2), if there are n number of letter f's on the LHS.
Please help! I don't understand what f of f(x) means. What exactly am I subbing in when I am trying to prove true for n=2 and assuming true for n=k?
Thank you.
Click here to see answer by Theo(13342)

Question 1136733: If the sums of the first three terms of an AP and a GP are equal and non-zero, the common difference of the AP and the common ratio of the GP are equal and the ratio of the AM to the GM is 1:-2, find the common ratio of the GP. Also, find the relationship between their first terms.
Click here to see answer by greenestamps(13200)

Question 1136952: Find the points on the graph y=7x/x-2 where the slope of the tangent line is parallel to the line 28x+2y-17=0
Click here to see answer by rothauserc(4718)

Question 1136952: Find the points on the graph y=7x/x-2 where the slope of the tangent line is parallel to the line 28x+2y-17=0
Click here to see answer by greenestamps(13200)

Question 1136992: Write a Scenario that corresponds to the graph shown
_|___|___|___|___|___|_
-29 -28 -27 -26 -25 -24
Click here to see answer by ikleyn(52778)

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, 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