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

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Question 1043674: Find all the points on the x-axis that are a distance of 13 units from (12,5)
Click here to see answer by josgarithmetic(39617)

Question 1043678: Solve for u?
u = 64.9 x 11 - 660 (11 ≤ 11 ≤ 14)
Click here to see answer by josgarithmetic(39617)

Question 1043679: What is the gradient of the straight line represented by the equation;
u = 64.9 x 11 - 660 (11 ≤ 11 ≤ 14)?

Click here to see answer by josgarithmetic(39617)

Question 1043690: The number of emails you sent can be modelled by the equation
u = 20�(1.8)^e,
where u is the total number of emails sent, and e is the number of
months since you started sending emails, where 0≤ e ≤ 8.
1 - find the month in which the exponential model predicts that the total
number of emails sent will first reach 500?
2 - Write down the value of the scale factor for the exponential
model. Use this to find the percentage increase in the total
number of emails sent?

Click here to see answer by Alan3354(69443)

Question 1043509: complete the ordered pair for x=3-y
Click here to see answer by Alan3354(69443)

Question 1043732: Si la compa�ia de alquiler de autos AVA cobra $50 m�s $0.10 por kilometro recorrido, y la compa�ia de alquiler de autos de Fernando cobra $20 m�s $0.20 por kilometro recorrido. �Para qu� distancia recorrida te cobrar�n lo mismo las dos compa�ias de alquiler?
seleccione una
a. 230 km.
b. 250 km.
c. 300 km.
Click here to see answer by Boreal(15235)

Question 1043737: 4x+5+5x+40=180
I have to find the value of the variable. But i don't understand the question since thier is two variables. Plz help
Click here to see answer by Alan3354(69443)

Question 1043717: The cost of developing pictures is a linear function of the number of pictures ordered. We placed two orders. The first order had 50 pictures and cost $3.75. The second order had 54 pictures and cost $3.95. Find the cost as a function of the number of pictures
Click here to see answer by josmiceli(19441)

Question 1043745: the slope intercept form given (-6,5) and perpendicular to -5x-7y=-17
the standard form of the line parallel to the given line y-3x
Click here to see answer by Boreal(15235)

Question 1043723: graph
f(x)={-x^2 if x<0
x+3 if x greater than or equal to 0}

both go in brackets
Click here to see answer by stanbon(75887)

Question 1043810: Find the equation of the line which meets the x-axis at x=4 and the y-axis at y=2. Enter your solution in the form y=mx+b.
Click here to see answer by Boreal(15235)

Question 1043804: solve by using your graphing calculator:
1. x^2-8x=-18
2.13x^2+24x-1=-14
Click here to see answer by Boreal(15235)

Question 1043820: Answer the equation in standard form.
Slope is -3 and the x-intercept is -2
Click here to see answer by Boreal(15235)

Question 1043825: Answer the equation in standard form.
Slope is 0 and y-intercept is 4
Click here to see answer by MathLover1(20849)

Question 1043825: Answer the equation in standard form.
Slope is 0 and y-intercept is 4
Click here to see answer by Alan3354(69443)

Question 1043834: Por ser juanita la festejada de la fiesta, al final se llevar� todo el pastel que sobre. Si a Pedro le dier�n 2/15 a Marta 3/12 y a Mar�a 5/20 �Qu� fracci�n del pastel se llevara juanita?
selecciona una
a. 30/15
b. 11/30
c. 15/30
Click here to see answer by Boreal(15235)

Question 1043688: The total number of Ford drivers between 2011 and 2014 can be modelled by linear equation;
x=64.9f-660 (11 ≤ f ≤ 14)
Where x is the number of Ford drivers in millions and f is the number of years since the start of 2000.
1 � Find the number of Ford drivers at the start of 2012?
2 � Calculate the year the total number of Ford drivers reach 150million?

Click here to see answer by advanced_Learner(501)

Question 1043907: What is the slope for these problems, I forgot how to do these.
1. 5-2(x+5)>30
2. 3x-1/2(6x+4)=6-2x
3. 12x+5=6x=17
4. -x/5+12>14
Click here to see answer by Boreal(15235)

Question 1043910: HI.
How would you write the equation of the line, in both point-slope and
slope-intercept formats, passing through the points
(-1,3)(4,6) ?
Thank you so much
Click here to see answer by Alan3354(69443)

Question 1043942: A coordinate plane is shown. Two lines are graphed. Line K has the equation y equals 2x minus 1. Line J has equation y equals negative 3 x plus 4.
Based on the graph, which statement is correct about the solution to the system of equations for lines K and J?
Click here to see answer by Alan3354(69443)

Question 1043948:
Click here to see answer by ikleyn(52780)

Question 1043929: Plumbers are often paid either by hour or on a per job basis. The rate they receive can affect their working speed. Suppose, they can work either for either $15 per hour, or for $560 plus $3 for each hour less than 40 if they can complete the job in less than 40 hours. Also suppose that it takes T hours to complete the job. Clearly the hourly rate is better if T>=40. If T<40, for what values of T is the hourly rate the better pay scale?
Click here to see answer by addingup(3677)

Question 1044044: I am having a tough time breaking down the following equation.
f(x)=3x+5
Click here to see answer by ikleyn(52780)

Question 1044088: Sue took a taxi from her home to her friend�s house. It cost $3.58 per mile and she gave the driver a $5 tip. If she paid $87.34, how many miles does she live from her friend?

Click here to see answer by advanced_Learner(501)

Question 1044053: srividya get a certain amount of money on retirement.she depoists half the money in the bank gives her daughter half of the remaining and an additional sum of rs 6000.she gives to his the remaining amount which is found to be half of what she gave her daughter.what is the amount srividya received on retirement.?
Click here to see answer by advanced_Learner(501)

Question 1044180: An executive invests $30,000, some at 10% and some at 5%. If she receives an annual return of $2,200, how much is invested at 10%?
Click here to see answer by jorel555(1290)

Question 1044188: What is an equation of the line that passes through the point (1,3) with slope -2?
Click here to see answer by richard1234(7193)

Question 1044196: Bruce bought two books. One book cost four dollars more than three times the other. Together, the two books cost him $72. What is the equation for the problem?
Click here to see answer by reviewermath(1029)

Question 1044222: Find equations for (0,0) and (5,8)
Click here to see answer by ikleyn(52780)

Question 1044223: Find equations for (0,0) and (5,8)
Click here to see answer by ikleyn(52780)

Question 1044229: What is the graph of Y=3x+5
Click here to see answer by josmiceli(19441)

Question 1044266: Write an equation in slope intercept form satisfying the given conditions (Please?):
The line passes through (2,6) and is perpendicular to the line whose equation is x + 2y = 3.
So far I have:
2y = x + 3
y = (1/2)x + (3/2)
slope is +2
y=6
6= 2(2) + b
6 = 4 + b
2 = b
equation y = 2(x) + 2
Click here to see answer by rothauserc(4718)

Question 1044304: If 3t-7=5t,then 6t =

Click here to see answer by MathLover1(20849)

Question 1044303: If 3 7 5, t t − = then 6t =

Click here to see answer by ikleyn(52780)

Question 1044356: Let R be the region enclosed by the graph of :
F(x)=5x and g(x)=(X^2)+3x-3
Find the area of the region R
Click here to see answer by Fombitz(32388)

Question 1044331: Line L has a slope of -3. The line through which of the following pair of points is perpendicular to L.
a. (-2,-3), (-3,-6)
b. (-18,-1),(-3,0)
c. (-4,-3), (-3,-6)
d. (-6,-4), (-3,-3)
How can I solve this?
Click here to see answer by MathLover1(20849)

Question 1044210: Analyzing relationships: As c increases, does the value of x increase, decrease, or stay the same for each equation? Assume c is positive:
x-c=0
cx=1
cx=c
x/c=1
Click here to see answer by robertb(5830)

Question 1044421: graph x+y=4
Click here to see answer by Alan3354(69443)

Question 1044479: -4x - 6 = -24

Click here to see answer by MathLover1(20849)

Question 1044523: (-8 -6) (12,8) A direct varaiation functions contains which equation correct Y-3/4x
Click here to see answer by oscargut(2103)

Question 1044663: I am an adult learner who hasn't studied math in 35 years. I want to know what equation would be parallel and passing through coordinates (2,9)
Click here to see answer by josgarithmetic(39617)

Question 1044721: the sum of three consecutive integers is -5. find the number
Click here to see answer by ikleyn(52780)

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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, 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