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

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Question 1091385: Which set of ordered pairs is a linear function?
A. (–2, –1), (0, 1), (2, 1), (4, 1)
B. (–2, 1), (0, 1), (2, 1), (4, –1)
C. (–2, –1), (0, 1), (2, –1), (4, 1)
D. (–2, 1), (0, 1), (2, 1), (4, 1)

Click here to see answer by KMST(5328) About Me 

Question 1091398: Find the distance between the two points and the midpoint of the line segment joining them.
(-5, -9) and (195,36)

Click here to see answer by Alan3354(69443) About Me 

Question 1091396: y=1/3x+2
y=x-1/2
y=1/2x+4
I don't know how to calculate these

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Question 1091447: 5x+8=3x-3 solve and state a property of equality
2(4y+3)=16 solve and state a property of equality
2/3p+1/5=4/5 solve and state a property of equality
3/4a-1/6=2/3a+1/4 solve and state a property if equality

Click here to see answer by addingup(3677) About Me 

Question 1091517: Jonathan works as a sales person and is paid a flat rate of $40 per day. His additional earnings depend on the number of items he sells. His daily wage, $w, is given by the equation w=40+0.5n, where n is the number of items he sells. Graph the relationship between n and w. Use 1 unit on a horizontal axis to represent 20 items and 1 unit on a vertical axis to represent $10.
Click here to see answer by Theo(13342) About Me 

Question 1091640: (-5/6,-4) and (-5/6,3/5) find the distance between the pair of points

Click here to see answer by josgarithmetic(39617) About Me 

Question 1091639: (-5/6,-4) and (-5/6,3/5)
Click here to see answer by Alan3354(69443) About Me 

Question 1091666: Write the equation of the line that passes through the points (3,7) and (-1,2) in:
(a)Point-slope form
(b)Slope-intercept form

Click here to see answer by Alan3354(69443) About Me 
Question 1091666: Write the equation of the line that passes through the points (3,7) and (-1,2) in:
(a)Point-slope form
(b)Slope-intercept form

Click here to see answer by josmiceli(19441) About Me 

Question 1091721: Find the value of a and b so that the graph of y=sqrt(ax + b) passes through points (-4,6) and (1,4).
Click here to see answer by Fombitz(32388) About Me 
Question 1091721: Find the value of a and b so that the graph of y=sqrt(ax + b) passes through points (-4,6) and (1,4).
Click here to see answer by MathLover1(20849) About Me 

Question 1091825: For this function I have to graph it and describe the range.
+f%28x%29+=+sqrt%28+x+%29+-4+

Click here to see answer by Fombitz(32388) About Me 

Question 1091781: A car is involved in a single vehicle accident and the tyre marks were more than 75 metres long. Under road conditions the distance d ( in metres). it takes a car travelling at v m/s to stop is approximated by the equation d= 0.05v^2 + v . The accident occurred in a 100 km/h speed zone. was there a likelihood of the driver exceeding this speed limit ?
Click here to see answer by Boreal(15235) About Me 
Question 1091781: A car is involved in a single vehicle accident and the tyre marks were more than 75 metres long. Under road conditions the distance d ( in metres). it takes a car travelling at v m/s to stop is approximated by the equation d= 0.05v^2 + v . The accident occurred in a 100 km/h speed zone. was there a likelihood of the driver exceeding this speed limit ?
Click here to see answer by jorel1380(3719) About Me 

Question 1091736: y = -1/2x^2

graph the parabola, plot the vertex and four additional points, two on each side of the vertex.

Click here to see answer by Boreal(15235) About Me 

Question 1092110: Can i get help with finding the distance between (-4, 6) and (3, -7) please on how to brake it down and come up with the answer

Click here to see answer by Boreal(15235) About Me 
Question 1092110: Can i get help with finding the distance between (-4, 6) and (3, -7) please on how to brake it down and come up with the answer

Click here to see answer by MathTherapy(10551) About Me 

Question 1092196: How do I work the following equation?
3/2a-8=11
I know the answer is 12 2/3 but do not know how to come to that answer.

Click here to see answer by MathLover1(20849) About Me 
Question 1092196: How do I work the following equation?
3/2a-8=11
I know the answer is 12 2/3 but do not know how to come to that answer.

Click here to see answer by ikleyn(52778) About Me 
Question 1092196: How do I work the following equation?
3/2a-8=11
I know the answer is 12 2/3 but do not know how to come to that answer.

Click here to see answer by greenestamps(13198) About Me 

Question 1092233: Consider Y= 2e^(-x)+1
a. Find Y when x=0, +/-1, +/-2
b. Discuss Y as x--> +/- infinity
c. Sketch the graph of y=2e^(-x)+1
d. State the equation of any asymptote

Click here to see answer by Boreal(15235) About Me 

Question 1091898: The graph of y=x^2 undergoes a transformation:
A scaling with scale factor 2 along the x-axis.
What is the resulting graph?

Click here to see answer by MathLover1(20849) About Me 

Question 1092360: 2x-y=4
X+y=5

Click here to see answer by josgarithmetic(39617) About Me 
Question 1092360: 2x-y=4
X+y=5

Click here to see answer by ikleyn(52778) About Me 

Question 1092396: graph of
y=1-2^[1+sin(x+1)]

Click here to see answer by Alan3354(69443) About Me 

Question 1092395: graph of function
y= (|x-3|+|x+1|)/(|x+3|+|x-1|)

Click here to see answer by greenestamps(13198) About Me 

Question 1092512: 3+2x=y

Click here to see answer by Alan3354(69443) About Me 

Question 1092553: Find the equation of the line that passes through (-4, 6) and is parallel to the line 3x + 4y = -2

Click here to see answer by MathLover1(20849) About Me 

Question 1092555: The two lines are perpendicular. Find the value of a: 3x – 2y – 6 = 0 and ax + 6y + 7 = 0

Click here to see answer by josgarithmetic(39617) About Me 

Question 1092554: Find the equation of the line that passes through the point (-2, 4) and is perpendicular to the line that passes
through the points (3, 7) & (4, 9)

Click here to see answer by josgarithmetic(39617) About Me 

Question 1092617: test the point (0,0) in the inequalities graphed below.
3x-2y<=5
t+x<2(x-1)-x

Click here to see answer by Fombitz(32388) About Me 

Question 1092710: Find the vertex of the graph of the function.
f(x) = (x - 10)^2 - 8

Click here to see answer by josgarithmetic(39617) About Me 

Question 1092718: Y=-(x+2)(x-3)
Click here to see answer by Fombitz(32388) About Me 

Question 1093012: To determine height from skeletal remains, scientist use the equation H=2.26f+66.4, where h is the persons height in centimeters and f is the skeltons fémur length in centímeters the equation has a marginal of error of 3.42 centimeters. In a recent discovey the femur measured 51.6 centimeters. Write and solve inequality to find the range of possible heights. Please I dont know how to start.
Click here to see answer by josmiceli(19441) About Me 

Question 1093039: Please help with the following problem: Write the equation of the line going through the point (-4,-1) and with slope 3 4
.

Click here to see answer by josgarithmetic(39617) About Me 

Question 1093038: Find the equation of the line through the point (-4,-5) and perpendicular to y=-1.
Thank you!

Click here to see answer by Theo(13342) About Me 

Question 1093036: Please help : Determine if the lines y+2=5x and 5y+x=-15 are perpendicular. Please explain your answer.

Click here to see answer by Alan3354(69443) About Me 

Question 1093037: Please help solve the following problem: Find the equation of the line with slope −7 9
and y-intercept (0,16).

Click here to see answer by Alan3354(69443) About Me 

Question 1093035: Please help solve the following problem:
Find the value of x such that the line containing the points (x,2) and (5,x) has -3 as slope.

Click here to see answer by ankor@dixie-net.com(22740) About Me 

Question 1093096: How to graph parrelle line to 3y - x = 3. Going through 2, neg 1 . Do not understand how to even graph the first one. Do not understand equation of line when x and y values are never given. I am in 7 grade. Videos never are doing same kind of problems.
Click here to see answer by Boreal(15235) About Me 

Question 1093204: Killer whales normally swim at a rate of 3.2-9.7 kmh, though they can travel up to 48.4 kmh. A killer whales is swimming at an average of 4.5 kmh the distance d traveled in t hours can be predicted by the equation d= 4.5 t

Click here to see answer by Alan3354(69443) About Me 

Question 1093316: Find the vertex of f(x)=-x^2-2x-8
Click here to see answer by Boreal(15235) About Me 

Question 1093361: Not sure if I picked the right category however this is the question.
When an automobile is being driven at v miles er hour, the average driver requies D feet of visibility to stop safely, where d = 0.065v^2 + 0.148v. Sketch the graph of D(v).
D(v) = 0.065V^2 + 0.148v
Not sure how to graph this, if someone can explain or link a tutorial related to this it would be great. Thank you

Click here to see answer by josmiceli(19441) About Me 

Question 1093504: Beatrice's brewpub analyzed their sales data for the last year and found that the number of beers bb sold in a day varies directly with the square of the temperature tt and inversely with the number of events happening on campus cc. Over the summer, when c=4c=4 and t=82t=82, they sold b=1681b=1681 beers in one day! How many beers should Beatrice expect to sell on a day with 6 events and a temperature of 70 degrees? Round your answer to the nearest whole number.
Click here to see answer by greenestamps(13198) About Me 

Question 1093523: What is the equation of the line that passes through the points (-1,1) and (4,7)?
Click here to see answer by Yanira_Sierra(1) 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, 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