Questions on Algebra: Linear Equations, Graphs, Slope answered by real tutors!

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Question 649225: 9x2 + y2 +9
Click here to see answer by Alan3354(69443)

Question 649405: Points A and B divide CD into the ratio 3:5:6 . |CD|=56 and A is between C and B .find the length of each segment.
Click here to see answer by Edwin McCravy(20055)

Question 649592: Please help:
What is the answer to this equation and how do you get that?
5(2x-7)+9(x-3)
Click here to see answer by MathLover1(20849)

Question 649624: For what value of x will the through (x,-1) and (10,3) have a slope of 1/2
Click here to see answer by ewatrrr(24785)

Question 649653: The graph of which of the following equations contains the points (2, 3) and (3, 2)?
Click here to see answer by solver91311(24713)

Question 649610: how do i simplify this expression:
5(2x-7)+9(x-3)
Click here to see answer by checkley79(3341)

Question 649981: THis table shows P as a function of W . is it linear function? Explain .Include in your explanation at least two rates of change
|w | 0 |1 |5 |7
|p |25|28|35|43
Click here to see answer by MathLover1(20849)

Question 650010: Need an equation for table of values
x 1,2,3,4,5,6,7,8
y 1,3,7,15,31,63,127,255
I can see that I should solve for y
and that y is +2,+4,+8,+16,+32,+64,+128,+256 and that doubling amount is 1 more than my y point, but can't figure how to write it up
Click here to see answer by jim_thompson5910(35256)

Question 650122: 2x - 5y = 10 with a y-intercept of (0,-1).Write the equation of the parallel line in slope-intercept form and then write the equation in standard form.
Click here to see answer by ewatrrr(24785)

Question 650131: Find an equation of a line that has an x intercept of 6 and a y intercept of 4
Click here to see answer by josmiceli(19441)

Question 650131: Find an equation of a line that has an x intercept of 6 and a y intercept of 4
Click here to see answer by ewatrrr(24785)

Question 650131: Find an equation of a line that has an x intercept of 6 and a y intercept of 4
Click here to see answer by Alan3354(69443)

Question 650130: Find the equation of the line that passes through the point (3,-6) and is parallel to the line 3x+y-10=0
Click here to see answer by ewatrrr(24785)

Question 650266: can u exsplain to me y+3=9
Click here to see answer by jim_thompson5910(35256)

Question 650278: What is the equation of the line which includes points (1, 3) and (2, 8)
Click here to see answer by sheldonbbtrocks(115)

Question 650549: Write the slope-intercept form of the line that goes through (-5,-1) and is parallel to x=0
Click here to see answer by Alan3354(69443)

Question 650545: in the coordinate plane - in quadrant II, x is ? and y is?
Click here to see answer by Alan3354(69443)

Question 650799: (3, -12) and (5, 6)

Click here to see answer by Alan3354(69443)

Question 650758: Find the slope of the curve 3x^2-y^2=12 if x=4.
Click here to see answer by Edwin McCravy(20055)

Question 650938: Can you please explain how to solve equations such as (9k+30)-(4k+10)=100 ? thanks
Click here to see answer by MathLover1(20849)

Question 650938: Can you please explain how to solve equations such as (9k+30)-(4k+10)=100 ? thanks
Click here to see answer by stanbon(75887)

Question 650938: Can you please explain how to solve equations such as (9k+30)-(4k+10)=100 ? thanks
Click here to see answer by Aaniya(63)

Question 650947: Is 2x+3y=12 a linear equation?
Click here to see answer by stanbon(75887)

Question 650947: Is 2x+3y=12 a linear equation?
Click here to see answer by rfer(16322)

Question 650947: Is 2x+3y=12 a linear equation?
Click here to see answer by MathLover1(20849)

Question 651008: I really need help understanding and linear equations such as ex.) -8<2/3x-4<10 or -7<6x-1<5 and when you graph them on a number line does it matter exactly what numbers you use, like whether u do 2,4,6,8 etc. or 1,2,3,4 etc? i would greatly appreciate it and im in Algebra 2 in the 11th grade
Click here to see answer by lwsshak3(11628)

Question 651222: (a)Determine the left-hand and right-hand behavior of the graph of f(x) =-4x^2 + 3x^2 - 1
(b)Determine the left-hand and right-hand behavior of f(x)= 3x^4 + 2x^3 + 7x^2 + x - 1
Click here to see answer by stanbon(75887)

Question 651525: 29-2/7y=1/9x in the form ax+by=c. where a, b, and c are integers
Click here to see answer by MathLover1(20849)

Question 651565: I need help in writing in standard form the equation of the line that passes through (2,5) and has no slope.
thank for your help.

Click here to see answer by stanbon(75887)

Question 651575: Given the linear equation y=-3/4x-3 , find the y-coordinates of the points (-8, ), (-4, ), and (4, ). Please show all of your work. Plot those points and graph the linear equation. Submit your graph through the dropbox.

Click here to see answer by stanbon(75887)

Question 312773: 1.
Match the number on the left with the proper combination of number types on the right. (5 points)
A. Real, Rational, Integer, Whole, Natural or Counting
B. Real, Rational, Integer, Whole
C. Real, Rational, Integer
D. Real, Irrational
E. Real, Rational
Sqrt 15 (Sqrt stands for the square root of a number)
15
5/4
-10
0
2.
Solve the equation for x.
4-3(x+1) = 2x (1.0 points)
A) x=-1
B) x=1/5
C) x=1
D) none of the above
3.
Solve the equation for x.
2x-7 = 2x+3 (1.0 points)
A) x=10
B) x=0
C) x=any real number
D) no solution
4.
Solve for x.
4-5x > -6 (1.0 points)
A) x>2/5
B) x<2
C) x>2
D) none of the above
5.
Solve for x.
3x-5 < 1 and -2x < 4 (1.0 points)
A) x<2 and x<-2
B) x<2 and x>-2
C) x<-4/3 and x<-2
D) none of the above
6.
Describe the graph of the solution to the combined inequality. 2x < -4 and 2x < 8 (1.0 points)
A) open dot on -2 & 4, and a line between them
B) open dot on -2 and arrow to the left
C) open dot on 4 and arrow to the left
D) none of the above
7.
Solve for B.
Ax + By = C (1.0 points)
A) B = Ax-C
B) B = (-Ax+C)/y
C) B = C - Axy
D) none of the above
8.
If y varies jointly as x and z, what is the expression for k? (1.0 points)
A) k=xyz
B) k=(xy)/z
C) k=y/(xz)
D) none of the above
9.
If f(x)= 2x-3 and g(x)= -4x, find g[f(-2)]. (1.0 points)
A) -56
B) 13
C) 28
D) none of the above
10.
Find the inverse of the function given.
f(x)= 3x+5 (1.0 points)
A) y=-3x+5
B) y=-3x-5
C) y=(x-5)/3
D) none of the above
11.
Find the slope and the y-intercept of the equation.
2x-3y = 6 (1.0 points)
A) m=2/3, b=6
B) m=2/3, b=-2
C) m=2, b=6
D) none of the above
12.
Write a line parallel to y = 2x-4 and passing through the point (2,3) (1.0 points)
A) y=(1/2)x-1
B) y=2x-3
C) y=2x-1
D) none of the above
13.
What is the slope of the line perpendicular to y =(3/4)x-7. (1.0 points)
A) -4/3
B) 3/4
C) 4/3
D) none of the above
14.
Match the example to the property it represents. (5 points)
A. Reflexive property of equality
B. Commutative property of addition
C. Distributive property
D. Inverse property of addition
E. Transitive property of equality
3+7+2=3+2+7
4+(-4)=0
3x=3x
If 3=5-2 and 5-2=6*(1/2) then 3=6*(1/2)
3(x-6)=3x-18
15.
If x varies directly as y, and x=1 while y=15, what is x if y=5 (1.0 points)
A) 1/15
B) 3
C) 1/3
D) none of the above
Click here to see answer by 5davise(1)

Question 651637: Given the function f(x)=7x+1, find each of the following.
f(3),F(5),F(0)
Click here to see answer by Seutip(231)

Question 651682: a rocket weighs 6000 pounds when it is resting on the launch pad. the engines burn fuel at the rate of 20 pounds per second.
a. write a linear function W(t) expressing rocket weigh as a function of time t in seconds
b. at what time into the launch will the rocket weigh 40% of its original weight ?
Click here to see answer by Edwin McCravy(20055)

Question 651776: g(x)=5+6/x is it a linear equation if so why
Click here to see answer by stanbon(75887)

Question 651782: Graph each line using two or three ordered pairs that satisfy the equation:
1. x = -3
2. y = 4
Click here to see answer by jim_thompson5910(35256)

Question 651718: 2x+x+3(2x+5)=5x-(x-4)+2x-10
Click here to see answer by jim_thompson5910(35256)

Question 651929: Write the slope intercept equation for the line that passes through (2,-9) and (4,1).
Click here to see answer by jim_thompson5910(35256)

Question 651936: find the slope and y intercept of the line in the given equation
y=-2/7x-3
Click here to see answer by VirtualMathTutor(26)

Question 651935: Write the slope intercept equation for the line that passes through (-2,3) and is perpendicular to 2x-9y=-12 Please show your work
Click here to see answer by VirtualMathTutor(26)

Question 651932: Write the slope intercept equation for the line with slope -5/6 and y intercept (0,4) and graph the line.I have to submit a graph
Click here to see answer by lwsshak3(11628)

Question 651930: write the slope intercept equation for the line that pass through (-2,3) and perpendicular to 2x-9y=-12
Click here to see answer by lwsshak3(11628)

Question 652088: please help me find the equation of the line through the given points.
(6, 9) and (1, -1)
Click here to see answer by asuar010(338)

Question 652119: Find the point of intersection of the pair of straight lines
8x + 8y=32
−9x + 7y= 4
Click here to see answer by shweta(56)

Question 652201: 2(x+3)+3x = -3(x-2)+8x
1) Conditional
2) Identity
3) Contradiction
Click here to see answer by jim_thompson5910(35256)

Question 652340: Please help me with this problem
Find the slope
(-12, -8) and (-14, -18)
Click here to see answer by Shana-D77(132)

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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, 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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, 24976..25020, 25021..25065, 25066..25110, 25111..25155, 25156..25200, 25201..25245, 25246..25290, 25291..25335, 25336..25380, 25381..25425, 25426..25470, 25471..25515, 25516..25560, 25561..25605, 25606..25650, 25651..25695, 25696..25740, 25741..25785, 25786..25830, 25831..25875, 25876..25920, 25921..25965, 25966..26010, 26011..26055, 26056..26100, 26101..26145, 26146..26190, 26191..26235, 26236..26280, 26281..26325, 26326..26370, 26371..26415, 26416..26460, 26461..26505, 26506..26550, 26551..26595, 26596..26640, 26641..26685, 26686..26730, 26731..26775, 26776..26820, 26821..26865, 26866..26910, 26911..26955, 26956..27000, 27001..27045, 27046..27090, 27091..27135, 27136..27180, 27181..27225, 27226..27270, 27271..27315, 27316..27360, 27361..27405, 27406..27450, 27451..27495, 27496..27540, 27541..27585, 27586..27630, 27631..27675, 27676..27720, 27721..27765, 27766..27810, 27811..27855, 27856..27900, 27901..27945, 27946..27990, 27991..28035, 28036..28080, 28081..28125, 28126..28170, 28171..28215, 28216..28260, 28261..28305, 28306..28350, 28351..28395, 28396..28440, 28441..28485, 28486..28530, 28531..28575, 28576..28620, 28621..28665, 28666..28710, 28711..28755, 28756..28800, 28801..28845, 28846..28890, 28891..28935, 28936..28980, 28981..29025, 29026..29070, 29071..29115, 29116..29160, 29161..29205, 29206..29250, 29251..29295, 29296..29340, 29341..29385, 29386..29430, 29431..29475, 29476..29520, 29521..29565, 29566..29610, 29611..29655, 29656..29700, 29701..29745, 29746..29790, 29791..29835, 29836..29880, 29881..29925, 29926..29970, 29971..30015, 30016..30060, 30061..30105, 30106..30150, 30151..30195, 30196..30240, 30241..30285, 30286..30330, 30331..30375, 30376..30420, 30421..30465, 30466..30510, 30511..30555, 30556..30600, 30601..30645, 30646..30690, 30691..30735, 30736..30780, 30781..30825, 30826..30870, 30871..30915, 30916..30960, 30961..31005, 31006..31050, 31051..31095, 31096..31140, 31141..31185, 31186..31230, 31231..31275, 31276..31320, 31321..31365, 31366..31410, 31411..31455, 31456..31500, 31501..31545, 31546..31590, 31591..31635, 31636..31680, 31681..31725, 31726..31770, 31771..31815, 31816..31860, 31861..31905, 31906..31950, 31951..31995, 31996..32040, 32041..32085, 32086..32130, 32131..32175, 32176..32220, 32221..32265, 32266..32310, 32311..32355, 32356..32400, 32401..32445, 32446..32490, 32491..32535, 32536..32580, 32581..32625, 32626..32670, 32671..32715, 32716..32760, 32761..32805, 32806..32850, 32851..32895, 32896..32940, 32941..32985, 32986..33030, 33031..33075, 33076..33120, 33121..33165, 33166..33210, 33211..33255, 33256..33300, 33301..33345, 33346..33390, 33391..33435, 33436..33480, 33481..33525, 33526..33570, 33571..33615, 33616..33660, 33661..33705, 33706..33750, 33751..33795, 33796..33840, 33841..33885, 33886..33930, 33931..33975, 33976..34020, 34021..34065, 34066..34110, 34111..34155, 34156..34200, 34201..34245, 34246..34290, 34291..34335, 34336..34380, 34381..34425, 34426..34470, 34471..34515, 34516..34560, 34561..34605, 34606..34650, 34651..34695, 34696..34740, 34741..34785, 34786..34830, 34831..34875, 34876..34920, 34921..34965, 34966..35010, 35011..35055, 35056..35100, 35101..35145, 35146..35190, 35191..35235, 35236..35280, 35281..35325, 35326..35370, 35371..35415, 35416..35460, 35461..35505, 35506..35550, 35551..35595, 35596..35640, 35641..35685, 35686..35730, 35731..35775, 35776..35820, 35821..35865, 35866..35910, 35911..35955, 35956..36000, 36001..36045