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

Tutors Answer Your Questions about Linear-equations (FREE)

Question 257709: are these equations parallel
x+11=y and x-y=-7
Click here to see answer by richwmiller(17219)

Question 257716: what is the equation for the line through (-8,-6) and parallel to y=1/2x+4
Click here to see answer by richwmiller(17219)

Question 257725: given the function K described by K(x)=x+20
k(0)
k(-17)
k(-12)
k (14)
k (d+17)
Click here to see answer by richwmiller(17219)

Question 257732: how do I solve k(x)=x+20
k (o)=
k(-17)=
k (-12)=
k(14)=
K (d+17)=
Click here to see answer by drk(1908)

Question 257738: What does -x stand for?
Click here to see answer by richwmiller(17219)

Question 257738: What does -x stand for?
Click here to see answer by jsmallt9(3758)

Question 257686: In 1920, the record for a certain race was 45.4 sec. In 1990, it was 44.7 sec. Let R(t) = the record race and t = number of years since 1920.
I have found the linear function that fits the dats which is R(t) = -0.0175 + 45.4 and found the predicted record for 2003 which is 43.95 and the predicted record for 2006 which is 43.9.
The problem I am having is finding the year that 44.50 is the predicted record. Could someone please help me with this on how to figure In what year will the predicted record be 44.50?
Thank you so much
Freda
Click here to see answer by ankor@dixie-net.com(22740)

Question 257743: how do i graph the slope and y intercept of X+5y=10
Click here to see answer by rfer(16322)

Question 257740: How do I find the slope and y-intercept of:
-3x + y= -2
Click here to see answer by rfer(16322)

Question 257735: how do i write an equation to find the given point and parallel of (-7,4)5x=3y+2
Click here to see answer by checkley77(12844)

Question 257804: find the slope x+2y=4
Click here to see answer by drk(1908)

Question 257794: graph y=2/3x+4 by using slope and y intercept

Click here to see answer by stanbon(75887)

Question 257781: i need to graph x=6
Click here to see answer by Alan3354(69443)

Question 257781: i need to graph x=6
Click here to see answer by richwmiller(17219)

Question 257820: write an equation of the line satisfying the given conditions. Vertical line through (6,-6).
Click here to see answer by richwmiller(17219)

Question 257833: find the center and radius of the circle.
x^2+(y+7)^2=4
Click here to see answer by richwmiller(17219)

Question 257837: Find the Slope, if it exist. 4X - 10Y = 20
Click here to see answer by stanbon(75887)

Question 257837: Find the Slope, if it exist. 4X - 10Y = 20
Click here to see answer by Alan3354(69443)

Question 257844: Housing prices in your neighborhood have been increasing steadily since you purchased your home in 2005. The relationship between the market value, V, of your home and the length of time, x, you have owned your home is modeled by the symbolic rule
V(x) = 2500x + 125,000
The graph of the rule is a line. What is the slope of this line? What is the practical meaning of slope in this situation?
Determine the vertical intercept. What is the practical meaning of this intercept in the context of this problem?
Determine and interpret the value V(8).
Click here to see answer by stanbon(75887)

Question 257863: what is 4x+y=-7
Click here to see answer by richwmiller(17219)

Question 257880: solve this equation.... -3y+20=2
Click here to see answer by unlockmath(1688)

Question 257822: Liner Equations and the Intercept Form
Undo the order of operations to find the x-value in each equation.
9 - 0.75(x+8) - 5 = -2
15 - 8(x-6)
-------------- = -2.25
4
Click here to see answer by checkley77(12844)

Question 258008: Find the slope of the line determined by the following equation.
8x-y = 72
I have toiled over this equation for an hour. Please show me in steps.
Click here to see answer by unlockmath(1688)

Question 258020: Write an equation of the line that passes through (-3,2) and is parallel to the line x-y=7.
I dont understand how to do this problem. Or even start it for that matter.
Click here to see answer by richwmiller(17219)

Question 258012: i need to know how to find the slope and the vertical and horizontal intercepts for each
y=3x-7
y=5x+2
y=5
g(x)=12+4x
Click here to see answer by richwmiller(17219)

Question 258030: i need to find the slope and vertical and horizontal intercepts for
y=3x-7
Click here to see answer by Greenfinch(383)

Question 258027: Find the slope of the line determined by the following equation:
x= 5-y/4
Please show steps to solving.
Thank you.
Click here to see answer by Greenfinch(383)

Question 258033: slope and the vertical and horizontal intercept
y=5x+2 can you show me the work so i know how to do this please thank you very much.
Click here to see answer by Greenfinch(383)

Question 258033: slope and the vertical and horizontal intercept
y=5x+2 can you show me the work so i know how to do this please thank you very much.
Click here to see answer by drk(1908)

Question 258045: can you help me find the slope and vertical and horizontal intercepts for
v=192-32t
Click here to see answer by drk(1908)

Question 258072: what is the parallel and perpendicular slope for -x-8y=-6
Click here to see answer by richwmiller(17219)

Question 258100: what is the slope intercept form for the points (4,2)?...the slope is m=3.
Click here to see answer by richwmiller(17219)

Question 258104: HI WORKING ON ORDERED PAIRS HERE. THE PROBLEM IT:
Y=7-4X AND I NEED TO FIND 3 DIFFERENT ORDERED PAIRS THAT ARE SOLUTIONS OF THE EQUATION.
Click here to see answer by drk(1908)

Question 258089: I need to find an equation for the line that passes through (8,1/2) and (-1/3,6)and write the resulting equation in standard form
Click here to see answer by checkley77(12844)

Question 258102: y=2x-1

Click here to see answer by MRperkins(300)

Question 258102: y=2x-1

Click here to see answer by richwmiller(17219)

Question 258102: y=2x-1

Click here to see answer by checkley77(12844)

Question 258061: i need to find the slope and a vertical and horizontal intercept.
w=-25+4r
Click here to see answer by richwmiller(17219)

Question 258111: can you help me find the slope and vertical and horizontal intercepts for
z=-200-8x can you show me how you arrived at this answer.
Click here to see answer by richwmiller(17219)

Question 258113: Find the equation of the straight line which is at right angles to the straight line defined by 5x-3y+2=0 and contains the point (1,4).

Click here to see answer by richwmiller(17219)

Question 258084: solve for y
4y-5/2=3/2y-3/5
Click here to see answer by checkley77(12844)

Question 258116: I am trying to solve the system by graphing.
I must solve for x and Y.
x-y=8
2x+y=7
I appreciate any help.
Thanks.
Click here to see answer by richwmiller(17219)

Question 258155: y=(x-2)^2
Click here to see answer by drk(1908)

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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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