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

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Question 628500: Find the slope of the line with these given points (9, 3) and (3, -6)
Click here to see answer by lenny460(1073)

Question 628582: i need to find the slope of this equation 4x-2y= -2
Click here to see answer by Alan3354(69443)

Question 628633: A line passes through (-6,-1) with a slope of 3/3. find two additional points on the line
Click here to see answer by Alan3354(69443)

Question 628658: find the intercepts of y=-4x^2+4x-1

Click here to see answer by reviewermath(1029)

Question 628692: The Internet Book Company charges $6 postage for 2 books, and $10 postage for 5 books.
a) Find an equation relating the postage charge and number of books.
b) How much will it charge to post 8 books?
Click here to see answer by John10(297)

Question 628623: Suppose that a certain strain of pea plant requires 14 days to reach a height of 6 inches and 30 days to reach a height of 16 inches. Write a linear equation in slope-intercept form that models the height of the plant after x days

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

Question 628773: y=9mx-4b; solve for b
Click here to see answer by Tatiana_Stebko(1539)

Question 628943: Y+3=4Y+18
Click here to see answer by jim_thompson5910(35256)

Question 628983: I need help solving this two part algebra problem. I'm not sure if it's a slope equation.
Given: f(x)=x^2+3x-2, find:
a. f(-2)

b. f(3)
Click here to see answer by jim_thompson5910(35256)

Question 629025: the system y is less than or equal to 5x+1 and x is less than or equal to 0. which of the ordered pairs is a solution of the system?
Click here to see answer by stanbon(75887)

Question 628729: My question is how do you write a system of linear equations for this rectangle? If the perimeter of this rectangle is 42feet. The length is 7ft longer than the width. I am suppose to find the deminsions, and write a system of equations and solve. Let x be length and y be the length. 2x+2y= and the second equation x=y+
Then I need the length and what the width of the rectangle is.
I would assume that I would add 42 twice, but from there I am not sure.
Click here to see answer by meetkisai(17)

Question 629106: find the slope if it exists, of the line containing the pair of points.

(-19,-10) and (-20,-15)
Click here to see answer by jim_thompson5910(35256)

Question 629098: 7x-8y=3
Click here to see answer by lenny460(1073)

Question 629227: find the equation in slope-intercept form of the line that passes through the point (-1, -3) and is parallel to the line y=8
Click here to see answer by solver91311(24713)

Question 629227: find the equation in slope-intercept form of the line that passes through the point (-1, -3) and is parallel to the line y=8
Click here to see answer by ewatrrr(24785)

Question 629227: find the equation in slope-intercept form of the line that passes through the point (-1, -3) and is parallel to the line y=8
Click here to see answer by josmiceli(19441)

Question 629255: Hello,
How to solve x + y =10
Where y is 4 years older than x.
Click here to see answer by darknez25(6)

Question 629349: y=3x-0 whta is the answer?

Click here to see answer by jim_thompson5910(35256)

Question 629349: y=3x-0 whta is the answer?

Click here to see answer by Alan3354(69443)

Question 629388: Could you show me how to graph the equation Y=3/2x+4 each step not just the graph but each step of solving the equation
Click here to see answer by jim_thompson5910(35256)

Question 629561: What is the slope of the line represented by the equation
x = -6?
Click here to see answer by ewatrrr(24785)

Question 629604: how to solve this using substitution and check
x-6y+4=0
y= -3

Thanks
Click here to see answer by stanbon(75887)

Question 629686: Is there a way to tell if there is no solution by just looking at the equations?

Click here to see answer by Edwin McCravy(20054)

Question 629686: Is there a way to tell if there is no solution by just looking at the equations?

Click here to see answer by richwmiller(17219)

Question 629781: Write point-slope form of the line to satisfy the given conditions. Then use the point -slope form of the equation to write the slope intercept form of the equation?
passing through (4,12) and (6,18)
Can some one help with this problem????
Click here to see answer by stanbon(75887)

Question 629792: 5x-2y=9

Click here to see answer by reviewermath(1029)

Question 629841: If the line passing through the points (1,k) and (5,4k) is parallel to the line x+3y-2=0, find the value of k
Click here to see answer by lwsshak3(11628)

Question 629918: Write the equation in slope-intercept form of the line containing the points (4,6) and (2,7)
Click here to see answer by Charles3475(23)

Question 629995: wright the equation for the horizntal line that containes 3,-5
Click here to see answer by Alan3354(69443)

Question 630053: What is the equation of a horizontal line passing through the point (1, 14)?
Click here to see answer by ewatrrr(24785)

Question 630180: What is the equation of the line passing through (1, 7) and parallel to the line y = �x + 5 in standard form?
Click here to see answer by Maths68(1474)

Question 630250: write a solution as an order pair
s= -1
y= -5
Click here to see answer by stanbon(75887)

Question 630259: Find x and y intercepts and graph. 4x-3y=6
Click here to see answer by dfrazzetto(283)

Question 630259: Find x and y intercepts and graph. 4x-3y=6
Click here to see answer by 55305(86)

Question 630256: Given f(x)=x*+3x-4, evaluate f(-6)
Click here to see answer by dfrazzetto(283)

Question 630272: perpendicular to the line 7x+y=-55; contains the point (-7,-7)
Click here to see answer by graphmatics(170)

Question 630254: Is (1,-3) a solution of y=-2x-1?
Click here to see answer by rapaljer(4671)

Question 630254: Is (1,-3) a solution of y=-2x-1?
Click here to see answer by lenny460(1073)

Question 630312: Find the equation of the perpendicular line to each of the following that passes through the point indicated.
x = 10 passing through the point (-3, 7)
Click here to see answer by ewatrrr(24785)

Question 630316: Find the equation of the perpendicular line to each of the following that passes through the point indicated.
y = -1 passing through the point (1, 6)
Click here to see answer by josmiceli(19441)

Question 630286: Divide 150 into three parts such that the second number is five-sixths the first and the third number is four-fifths the second.
Click here to see answer by josmiceli(19441)

Question 630335: IF A LINE HAS A SLOPE OF 3 AND PASSES THROUGH THE POINTS (-2,-7) AND (4,K) WHAT IS THE VALUE OF K? Thank you! An explanation would be lovely too. :)
Click here to see answer by ewatrrr(24785)

Question 630404: how to write an equation in slop intercept from with one solution

Click here to see answer by richwmiller(17219)

Question 630527: Explain how you would use the substitution method to solve the following system of equations. Provide the solution to the system.
x + 6y = 1
2x + 5y = 9

Click here to see answer by richwmiller(17219)

Question 630533: what is a solution to the system of inequalities:
y �2x + 3
y < x � 4
please show work
Click here to see answer by unlockmath(1688)

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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