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

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Question 756863: solve: 1/5 (10x-2)=4
Click here to see answer by sachi(548)

Question 757027: I'm having trouble on simple summer homework. I've tried so many times!!! Write the slope-intercept form of the equation of the line though the given point with the given slope.
through (5,-4) slope= -3/5
Click here to see answer by josgarithmetic(39617)

Question 756960: WHAT IS THE TWO POINT OF =8/3X+4? GAPHING A LINEAR EQUATION BY PLOTTING POINTS

Click here to see answer by MathLover1(20849)

Question 757202: Fiona and Hoggy gain a kilo each every week. Fiona is currently 70kg, while Hoggy is 10kg. How many weeks does it take for Fiona to be TWICE as heavy as Hoggy?
NOTE: I've asked nearly all my teachers in my school and none of them have gotten the answer without using trial and error. I want to know how to get the answer by using algebra. Thank you :)
Click here to see answer by Alan3354(69443)

Question 757197: What are 5 straight lines that pass through the co-ordinates (2,1)
Click here to see answer by Alan3354(69443)

Question 757297: If f(x)= x^2 + 7, what is the equation for f^-1(x)?

Click here to see answer by stanbon(75887)

Question 757352: Write the equation y - 2 = 4(x + 5) in standard form.
Click here to see answer by Cromlix(4381)

Question 757415: how do you determine whether the lines are parallel, perpendicular or neither. For 3x - 6 y = -20 and 36 x + 12 y = -12
Click here to see answer by Alan3354(69443)

Question 757421: How do you model a table of values out of x+3=0 ?
Click here to see answer by solver91311(24713)

Question 757398: Write an equation of the line that passes through the given point and is perpendicular to the given line. Your answer should be written in slope-intercept form.
P(−4, 1), y + 2x = −15
Click here to see answer by lwsshak3(11628)

Question 757442: Find the slope and y intercept of the graph of the eqation5x+8y=16 I tried canceling out 5x so i subtracted 5x from 5x and 16 so that will be 8y+16-5x I do not know what to do after that
Click here to see answer by John10(297)

Question 757467: Jack is twice as old as Jill. If 4 years ago Jack�s age was thrice as Jill�s. Find their present age.
Click here to see answer by josmiceli(19441)

Question 757523: if p is jointly proportional to q and inversely proportional to s, state in words the relationship between q and the other variables
Click here to see answer by sachi(548)

Question 757524: suppose the function f is defined by 2xy-25=0, will the line defined by y=x cut the gragh of f in two points, or the shortest distance from the origin to a pont on the graph of f be 5 units, or will the graph of f be a hyberbola which lies in the first and third quadrants
Click here to see answer by stanbon(75887)

Question 757394: Write an equation of the line with the given properties. Your answer should be written in standard form.
m = −1/5 passing through P(−6, −9)
Click here to see answer by Cromlix(4381)

Question 757392: Write an equation of the line with the given properties. Your answer should be written in standard form.
m = −3 passing through P(2, 8)
Click here to see answer by Cromlix(4381)

Question 757351: Write the slope-intercept form of the equation of the line parallel to y = 5x + 2, which passes through the point (4, 9).
Click here to see answer by Cromlix(4381)

Question 757585: Someone explain how to find x-intercept and y-intercept for equation 3x+y=2. Thanks
Click here to see answer by Cromlix(4381)

Question 757635: Complete these ordered pairs for this equation.
(0, ), (2, ), ( , 0) 3x+2y=6
Click here to see answer by MathLover1(20849)

Question 757686: This equation is parallel to the line y=5x-7 and goes through the point (-2, -12)What is this equation in y=mx+b form?
Click here to see answer by jim_thompson5910(35256)

Question 757685: Write the equation of the line that has the following properties. Write the equations in the slope-intercept form, y=mx+b.
Question 1: The equation goes through the points (-8, -5) and (-6, -2)
Question 2: The equation goes through the points (4, -7) and (8, -10)

THANK YOU SO MUCH
Click here to see answer by solver91311(24713)

Question 757681: Write the equation of the line that has the following properties. Write the equations in the slope-intercept, y=mx+b.
Question 1: The equation goes through the points (-8, -5)and (-6, -2)
Question 2: The equation goes through the points (4, -7) and (8, -10)
Thank you for your help!!
Click here to see answer by solver91311(24713)

Question 757699: Find an equation for the line with the given properties.
Parallel to the line 2x - y = -2; containing the point (0,0)
Click here to see answer by solver91311(24713)

Question 757707: Find the slope and y-intercept (if possible) of the line
y = −10
Click here to see answer by jim_thompson5910(35256)

Question 757707: Find the slope and y-intercept (if possible) of the line
y = −10
Click here to see answer by stanbon(75887)

Question 757719: The base of a ladder is 4 horizontal feet from the wall where its top rests. The slope of the line made by the ladder is 3.0. What is the vertical height of the top of the ladder? (Assume that the positive direction points from the base of the ladder toward the wall.)
Click here to see answer by stanbon(75887)

Question 757756: (x+7)/(2x+3) = 8/5
Click here to see answer by Edwin McCravy(20054)

Question 757917: solve the following system of linear equations
3x+4y=8
8y=16-6x
Click here to see answer by stanbon(75887)

Question 757926: Find the slope-intercept form for the line satisfying the following conditions
x-intercept 3, y-intercept 2/3
Click here to see answer by lwsshak3(11628)

Question 757797: Find the length of the segment joining (-3,4) and (1,-1), correct to two decimal places, with working out.
Click here to see answer by jim_thompson5910(35256)

Question 758020: Find an equation for the line with the given properties.
Perpendicular to the line x = 9; containing the point (8,9)
Click here to see answer by Alan3354(69443)

Question 758021: Graph the linear equation by solving for y first. This is what I started but I cannot figure out the next step.
x + 4y= -4
4y = x-4
y= 1/4x -4/4
y= 1/4x -1
y= 1/4(0)-1= -1
The first plot is (0,-1)for the solution y= 1/4x -1
This is where I am stuck
Click here to see answer by Alan3354(69443)

Question 757980: how many solutions are there to the following systems
1.6x - 3y = 9, and y = 2x - 3.

2.6x - 3y = 12, and y = 2x - 3.
Click here to see answer by oscargut(2103)

Question 757967: solve through (2,-5), parallel to 2x - y = -4
Click here to see answer by Cromlix(4381)

Question 758217: Write an equation of the line containing the specified point and perpendicular to the indicated line .
(0,-7), 4x+3=y
Thank you
Jennifer
Click here to see answer by lwsshak3(11628)

Question 758259: How do you find the coordinate vertex for Y=-2(x-4)(x-2)? I am very confused please help thank you?
Click here to see answer by josgarithmetic(39617)

Question 755603: solve n/4-2n/7=0
Click here to see answer by tommyt3rd(5050)

Question 757949: A cathedral ceiling shown in the figure below is 8 feet high at the west wall of a room. As you go from the west wall toward the east wall, the ceiling slants upward. Three feet from the west wall, the ceiling is 10.5 feet high.
What is the slope of the ceiling?
The width of the room (the distance from the west wall to the east wall) is 17 feet. How high is the ceiling at the east wall?
You want to install a light in the ceiling as far away from the west wall as possible. You intend to change the bulb, when required, by standing near the top of your stepladder. If you stand on the highest safe step of your stepladder, you can reach 21 feet high. How far from the west wall should you install the light?
I obviously need to find slope first , i tried using 10.5 as my run and 8 as my rise and a combination of others, if you can just help me find slope i think i can get the rest.
Click here to see answer by Cromlix(4381)

Question 758341: I have an algebra problem. What it is is a letter from a basic math student and I need to come up with the equation and the answer then be able to explain it to them in a simple way they can understand.
Here is the basic math students question.. During his shift at the school carnival he sold 112 drinks. He thought he only needed to keep track of the total amount of drinks sold, but it turns out they want to know how many bottles of water and how many bottles of soda were sold as separate numbers. The question is: If the number of bottles of water sold was 4 less than 3 times the number of bottles of soda, how many of each did he sell ?
I have to figure out the answer ( how many water and how many sodas) explain how i set up the equation and solved it. So in case the situation happens again they could answer the question.

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

Question 758398: -5/2(y-10)-1/6y
Click here to see answer by stanbon(75887)

Question 757716: You have space in your garden for 40 small flowering bulbs. Crocus bulbs cost $0.55 each and daffodil bulbs cost $0.65 each. Your budget allows you to spend $23.20 on bulbs. How many crocus bulbs and how many daffodil bulbs can you buy?
Click here to see answer by Cromlix(4381)

Question 758587: Can you answer this for me
Elimination: 3x+2y=12
5x-4y=-2
Click here to see answer by Cromlix(4381)

Question 758837: when 35 is added to a number then the result is tripled, the result of this is ten times the original number. what is the original number?
Click here to see answer by tommyt3rd(5050)

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, 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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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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