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

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Question 86288: I need help with this problem: What is the equation of the line that is to y=3x+1 and passes through (2,6)?
Click here to see answer by ankor@dixie-net.com(22740)

Question 86318: Tutor can you help me: What is the slope, x-intercept, and y-intercept of the following line?
3x + 4y = 9
Thank you
Click here to see answer by scianci(186)

Question 86317: Tutor can you help me to find the slope of these two lines y = -7.921 and
x = 9.124
Thank you
Click here to see answer by scianci(186)

Question 86324: Translate the following statement into an algebraic equation. Let x represent the number.times a number that is 14 more than that number.

Click here to see answer by stanbon(75887)

Question 86326: Convert 8.4 to a percent.
Click here to see answer by stanbon(75887)

Question 86325: Is �4 a solution to the equation 7x � 5 + 3x = 6 + x � 10
Click here to see answer by chitra(359)

Question 86320: Solve. �4x = �8
Click here to see answer by bucky(2189)

Question 86322: �3(x + 1) = 2(x � 8) + 3
Click here to see answer by praseenakos@yahoo.com(507)

Question 86321: 8x � 11 = 2x + 1
Click here to see answer by praseenakos@yahoo.com(507)

Question 86327: Find the mean and the median.
�2, 7/4 ,3/4 , 4, 9
arrange the numbers in ascending order
-2,3/4,7/4,4,9. mean= -2+3/4+7/4+4+9/5= -2+10/4+13/5= 11+10/4/5=44+10/4/5
= 54/4.5 =54/20=2.7 mean=2.7
median = (n+1)th/2 term= (5+1)th/2term= 6/2th term = 3rd term= 7/4
median= 7/4
Click here to see answer by praseenakos@yahoo.com(507)

Question 86394: i need help with this problem 5a divided by 7 equals -10 the 5a is over the 7. if u could please explain this problem to me i would greatly appreciate it.
Click here to see answer by stanbon(75887)

Question 86410: i need help please try this problem 7-3(5-u)=5(u-4) if anyone could help i would greatly appreciate it!
Click here to see answer by Earlsdon(6294)

Question 86415: v-4(4-v)=2(2v-1) this is what i tried
16-5v=4v-1
5v=4v-17 now it get lost please someone help
Click here to see answer by tutorcecilia(2152)

Question 86480: which of the following is a linear factor of 2x(with an exponent of 2)-x-6?
A.2x-3
b.x+2
c.2x-3
d.x-3
Click here to see answer by chitra(359)

Question 86551: y=2x+1 find the slope and y-intercept
y=-3x-2 find the slope and y-intercept
y=-3/4x+1 find the slope and y-intercept
Click here to see answer by tutorcecilia(2152)

Question 86551: y=2x+1 find the slope and y-intercept
y=-3x-2 find the slope and y-intercept
y=-3/4x+1 find the slope and y-intercept
Click here to see answer by bucky(2189)

Question 86561: Techology. Driving down a mountain, Tom finds that he has descended 1800 ft in elevation by the time he is 3.25 mi horizontally away from the top of the mountain. Find the slope of his descent to the nearest hundredth.

this is what I come up with
y=mx+b
y=3.25x+1800
Am I on the right track. I just don't know how to continue...
Click here to see answer by checkley75(3666)

Question 86564: Graph the equation y=-2x+4
Click here to see answer by checkley75(3666)

Question 86563: Graph the equation y=-2x+4
Click here to see answer by jim_thompson5910(35256)

Question 86596: find the slope of any line perpendicular to the line through points (0,5) and (-3,-4)
Click here to see answer by Flake(45)

Question 86726: Find the slope and y-intercept of the line
2x - 3y = 6
Write the equation of the line with given slope and y-intercept. How would they be graphed using slope and y-intercept.
slope 5; y-intercept: (0, -2)
Slope -2; y-intercept: (0,4)
slope - 3/4; y-intercept: (0,8)
Click here to see answer by bucky(2189)

Question 86855: find the slope intercept form (y=mx+b) of the equation for the line that satisfy the following:
passes through the points (3,-1) and (1,4)

Click here to see answer by praseenakos@yahoo.com(507)

Question 86854: find the slope intercept form (y=mx+b) of the equation for the line that satisfy the following:
passes through (5, -9) and is perpendicular to the line whose equation is y=1/7x +4

Click here to see answer by praseenakos@yahoo.com(507)

Question 86902: An employee who produces x units per hour earns an hourly wage of y=0.75x+8 (in dollars). Find the hourly wage for an employee who produces 15 units per hour.
Click here to see answer by tutorcecilia(2152)

Question 86939: Graph 3x+y=3
I know I have to solve for y...and x is equals to 0?
this is what I come up with...
3(0)+ y = 3
y=3-3
y= 0
is this correct?
Click here to see answer by stanbon(75887)

Question 86957: Solve algebraically using one variable: The perimeter (distance around) of a rectangle is 38 inches and its area (length times width) is 70 square inches. Find the length and the width of this rectangle.

Click here to see answer by scott8148(6628)

Question 87006: f(x)=2x+5 determine by inspection the slope and y-intercept of each line
Click here to see answer by tutorcecilia(2152)

Question 87076: You have at least $30 in change in your drawer, consiting of dimes and quarters. Write an inequality that shows the different number of coins in your drawer.
Click here to see answer by Edwin McCravy(20055)

Question 86983: 1.y=x+3
2.y=2-x
3.y=3x-1
4.y=x/2
5.y=2x
6.y=x/-1
Click here to see answer by tutorcecilia(2152)

Question 87095: Can someone explain to me how this is done?
Find the slope and y-intercept.
x = �5

Click here to see answer by checkley75(3666)

Question 87105: The average of the temperatures for the cities of Chicago, Paris and Boston was during a given day last Spring. The temperature in Paris was higher than the average temperatures of the other two cities. The temperature in Boston was lower than the average temperature of the other two cities. What was the temperature in each on of the cities? Give the system of linear equations that you use to determine your answer.

Thank you for your help.
Click here to see answer by stanbon(75887)

Question 87107: If A is a square matrix with the property (A with an exponet of 2) = 0, show that (I - A)inverse = A + I.

Thank you
Click here to see answer by longjonsilver(2297)

Question 87107: If A is a square matrix with the property (A with an exponet of 2) = 0, show that (I - A)inverse = A + I.

Thank you
Click here to see answer by Edwin McCravy(20055)

Question 87149: What is the slope of the line represented by the following equation?
x/2-y/4=0
Click here to see answer by Earlsdon(6294)

Question 87131: You have $5,000 in your checking account (0% interest). At the end of each year, you put $10,000 into your checking account. An equation for how much money is in your checking account can be seen below: M = 10,000Y + 5,000 The slope (10,000) tells you how much money you make per year. (rise / run) = (money / year)
I am not good at graph at all I don't understand them so if some can explain how to do a graph for this problem then I could do the next one on my own. Thank you

Click here to see answer by favegirl13(22)

Question 87207: A bank's total monthly charge for a checking account is $6 plus $0.05 per check. If your total monthly charge is $6.90, how many checks did you write during that month?
Click here to see answer by favegirl13(22)

Question 87244: Find the equation of the line.
Slope -1/3 y-intercept (0,3/2)
The problem is I do not know how to begin solving it could you give me the steps or an example of this problem with using same method but different numbers.
Click here to see answer by jim_thompson5910(35256)

Question 87304: The line passes through the points (-3,4) and (7,-2). I have
m=4-(-2)/-3-7 = 6/10 = 3/5

Click here to see answer by jim_thompson5910(35256)

Question 87297: Given a line containing the points (1,4),(2,7),and(3,10) determine the slope-intercept form of the equation, provide one additional point on this line, and graph the function.
Click here to see answer by jim_thompson5910(35256)

Question 87329:
3) It is approximately 480 miles from Los Angeles, California, to San Francisco, California. Allowing for various traffic conditions, a driver can average approximately 60 miles per hour.
a) How far have you traveled after 3 hours?
b) How far have you traveled after 4 hours?
c) How far have you traveled after t hours (i.e., write a linear function that expresses the distance traveled, d, as a function of time, t).
d) How far will you HAVE LEFT to travel to reach San Francisco after you have traveled 3 hours?
e) How far will you HAVE LEFT to travel to reach San Francisco after you have traveled 4 hours?
f) How far will you HAVE LEFT to travel to reach San Francisco after you have traveled t hours (i.e., write a linear function that expresses the distance to be traveled to reach San Francisco, s, as a function of time, t).

Click here to see answer by checkley75(3666)

Question 87344: Rose's garden is in the shape of a trapezoid. If the height of the trapezoid is 16 m, one base is 20 m, and the area is 224 m^2, find the length of the other base.
Click here to see answer by favegirl13(22)

Question 87328: 3) It is approximately 480 miles from Los Angeles, California, to San Francisco, California. Allowing for various traffic conditions, a driver can average approximately 60 miles per hour.
a) How far have you traveled after 3 hours?
b) How far have you traveled after 4 hours?
c) How far have you traveled after t hours (i.e., write a linear function that expresses the distance traveled, d, as a function of time, t).
d) How far will you HAVE LEFT to travel to reach San Francisco after you have traveled 3 hours?
e) How far will you HAVE LEFT to travel to reach San Francisco after you have traveled 4 hours?
f) How far will you HAVE LEFT to travel to reach San Francisco after you have traveled t hours (i.e., write a linear function that expresses the distance to be traveled to reach San Francisco, s, as a function of time, t).

Click here to see answer by favegirl13(22)

Question 87381: Write an equation for the line in point/slope form and slope/intercept form that passes through (1,4) and parallel to the line 2x-3y=6.
Click here to see answer by checkley75(3666)

Question 87369: The question is:
Solve the system of linear equations using substitution method
x+3y=7
2x-3y=8
Click here to see answer by checkley75(3666)

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, 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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, 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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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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, 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