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

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Question 394089: Two angles are complementary. The sum of the measure of the first angle and half the second angle is 73.5. Find the measures of the angles.
What is the measure of the smaller angle?
What is the measure of the other angle?
Click here to see answer by mananth(16946)

Question 394131: Using the function f(x)=x^2+x and g(x)=x-5
a. Find h(x)=(f◦g)(x).
b. State the domain of h(x)=f◦g)(x).
c. Find h(x)=(g◦f)(x).
d. State the domain of h(x)=(g◦f)(x).
Click here to see answer by stanbon(75887)

Question 394221: Solve the system of equations by substitution
x+6y=23
2x+2y=16
Click here to see answer by MathLover1(20849)

Question 394222: Solve the system of equations by substitutions
2x+2y=18
x+3y=25
Click here to see answer by MathLover1(20849)

Question 394224: solve the system of equations by addition
2x+y=5
3x-2y=-3
Click here to see answer by MathLover1(20849)

Question 394225: solve the sysytem of equations by addition
x-2y=-4
2x+y=7
Click here to see answer by MathLover1(20849)

Question 394243: Find the x- and y-intercepts of the line and write the equation in standard form. could you please show me step by step:)
y=2/7x-1
Click here to see answer by ewatrrr(24785)

Question 394246: The point (0, 2, �6) lies in the yz-plane and is located to the right and down from the origin. What is a similar description for each point?
(3, �5, 0)
Click here to see answer by ewatrrr(24785)

Question 394240: Solve the inequality. Graph the solution.
Absolute value(2s-5)<3
Click here to see answer by rfer(16322)

Question 394274: Rewrite the equation y = �2x2 � 4x + 3 in vertex form. Identify the vertex and the axis of symmetry.
Click here to see answer by TeishaRenee(14)

Question 394337: Mrs. Paullson bought chicken wire to enclose a rectangular garden. She is restricred to a widt of no more than 30 ft. She would like to use at most 180 ft of chicken wire. write a system of linear inequalities that5 describe this situation. Grapth the system to show all possible solutions.
Click here to see answer by josmiceli(19441)

Question 394658: The table shows experimental values of two quantities, x and y, which are known to be connected by a law of the form y = k b^x
x 1 2 3 4
y 30 75 190 470
Explain how a straight line graph may be drawn to represent the given equation and draw it for the given data. Hence use this graph, or otherwise, to estimate the value of k and of b.
:)
Click here to see answer by richard1234(7193)

Question 394688: Find the x-intercepts and y-intercepts.

Click here to see answer by ewatrrr(24785)

Question 394688: Find the x-intercepts and y-intercepts.

Click here to see answer by jrfrunner(365)

Question 394691: Find the vertex, the line of symmetry, the maximum or minimum value of the quadratic function, and graph the function.

Click here to see answer by ewatrrr(24785)

Question 394709: Find the vertex, the line of symmetry, the maximum or minimum value of the quadratic function, and graph the function.

Click here to see answer by Alan3354(69443)

Question 394709: Find the vertex, the line of symmetry, the maximum or minimum value of the quadratic function, and graph the function.

Click here to see answer by ewatrrr(24785)

Question 394743: Rewrite the equation y=�2x^2-4x+3 in vertex form. Identify the vertex and the axis of symmetry.
Click here to see answer by ewatrrr(24785)

Question 394775: Find the x-intercepts and y-intercepts for f(x).

Click here to see answer by solver91311(24713)

Question 394799: Find the vertex, the line of symmetry, the maximum or minimum value of the quadratic fuction, and graph the function.

The vertex is ___ (Type an ordered pair.)
The line of symmetry is:
A. y=4
B. x=2
C. x=-2
D. y=-4
The maximum/minimum of f(x) is ___.
Is the value, f(2)=4 a minimum or a maximum?
Graph.
Click here to see answer by stanbon(75887)

Question 394804: Find the vertex, the line of symmetry, the maximum or minimum value of f(x), and graph the function.

The vertex is ___ (Type an ordered pair.)
The line of symmetry is x=___.
The maximum/minimum of f(x) is ___.
Is the value, f(-5)=-3 a minimum or a maximum?
Graph.
Click here to see answer by stanbon(75887)

Question 394814: what is the y-intercept for y=1.25+350 and y=x+600
Click here to see answer by stanbon(75887)

Question 394835: Graph the equations by completing the tables and plotting the points; you may place them on the same graph, or graph them separately. You may use Excel or another web-based graphing utility.
a) y = 2x - 5
Use the table; find at least 3 points using any values for x
x y
-1
1
3

b) y = 3x - x2
Use the values of x provided in the table.
x y
-1
0
1
2
3
4

Click here to see answer by mananth(16946)

Question 394840: X + 2Y = 2
Click here to see answer by Alan3354(69443)

Question 394880: What is the slope of the containing points (7,4)(9.-6)? Please help? Shelly
Click here to see answer by robertb(5830)

Question 394882: Using this function what is the domain of the function p(x)=x^2-2x+8. Thank you! Shelly
Click here to see answer by robertb(5830)

Question 394875: Can you help me? y+x=5 what is the y intercept? Thank you! Shelly
Click here to see answer by robertb(5830)

Question 394877: if graphing the points and finding the slope what is the slope with the given pairs (0,2)(-6,-2). I really appreciate it. Thank you! Shelly
Click here to see answer by stanbon(75887)

Question 394874: Can you help me with this to find the points x+2y=4. Thank you! Shelly
Click here to see answer by stanbon(75887)

Question 394981: Find and label the vertex and the line of symmetry. Graph the function.

The vertex is ____.
(Type an ordered pair.)
The equation of the line of symmetry is x=____.
Graph.
Click here to see answer by ewatrrr(24785)

Question 394986: How do I draw a graph for y = 3 x + 1
Click here to see answer by MathLover1(20849)

Question 394986: How do I draw a graph for y = 3 x + 1
Click here to see answer by ewatrrr(24785)

Question 394988: Find the vertex, the line of symmetry, and the maximum or minimum value of f(x). Graph the function.

The vertex is ____.
(Type an ordered pair.)
The line of symmetry is x=____.
The maximum/minimum value of f(x) is ____.
Is the value, f(-4)=8, a minimum or maximum?
Graph.
Click here to see answer by ewatrrr(24785)

Question 395010: i FORGOT how too graph ANY HELP PLEASE?! I forgot well you know that little saying "First your laying down then you stand up well i forgot which way is tha laying &the standing upPLEASEHELP!
Click here to see answer by scott8148(6628)

Question 395051: Graph the equations and identify the y-intercept for both.
y=4/3x+2 and y=3/2x-1
Click here to see answer by lwsshak3(11628)

Question 395087: can you help? in 1990 the life expectancy was 62.3 yrs and in 1995 it was 65.8 using the linear function E(t), what is the life expectancy of males in 2003 using E(13). Thank you! Shelly
Click here to see answer by stanbon(75887)

Question 395091: Can you help? x=-5 what is the slope. Thank you! Shelly
Click here to see answer by MathLover1(20849)

Question 395091: Can you help? x=-5 what is the slope. Thank you! Shelly
Click here to see answer by stanbon(75887)

Question 395090: can you help? 5/8x+1/16x=3/16+x. Thank you! Shelly
Click here to see answer by stanbon(75887)

Question 395108: high tech graphics bought a fax machine for $750.00. the fax machine depreciates at the rate of $25.00 per month.
find a function F that can be used to determime the value of the fax machine t months after purchase
Click here to see answer by stanbon(75887)

Question 395054: evaluate the function f(x)=x2+9x+6 at the given value of the independent variable and simplify

a. f(-7) b. f(x+8) c. f(-x)

I know the a. answer is -8 but I need to know how they came up with that answer
f(-7)= -8
Click here to see answer by richard1234(7193)

Question 395081: how do you graph a linear inequality with no x?

Click here to see answer by stanbon(75887)

Question 394133: Using graph P(x): http://img140.imageshack.us/img140/1901/pxgraph.jpg
a. List the real zeroes of P(x).
b. List the turning points of P(x).
c. State the left and right behavior of P(x).
Click here to see answer by robertb(5830)

Question 395184: graph the inequality on a plane
3x+4y<12
Click here to see answer by mananth(16946)

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