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

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Question 831890: I need an linear equation. It has to discuss how it is used, if it was used correctly , and what solutions to the equation mean and what is the solution supposed to tell me once I find it.
Click here to see answer by richwmiller(17219)

Question 831888: Find the correct graphical representation of the solution of this inequality: -3 l 4x + 1 < 5

Click here to see answer by Fombitz(32388)

Question 831982: How do u solve y+4=0 in a linear equation using intercepts

Click here to see answer by Alan3354(69443)

Question 827887: what is the y equation if the points are (0,1) (-5,0) (4,2) (9,3)

Click here to see answer by tommyt3rd(5050)

Question 832010: how do I solve 7x+4(1)=6 ?
Click here to see answer by Alan3354(69443)

Question 827891: x+2y=2

Click here to see answer by tommyt3rd(5050)

Question 832108: how can you tell the differences in character and behavior between f(x)=-5x+3/4 and g(x)=-10x+3/4
Click here to see answer by josgarithmetic(39617)

Question 832113: solving systems by substitution
solve each system of equations using the substitution method. Check the solution.
x-7y=4
3x+y=-10
Click here to see answer by mananth(16946)

Question 832129: Algebraically show that the line containing the points (a,b) and (b,a), such that a≠b, is perpendicular to the line y=x
Click here to see answer by josgarithmetic(39617)

Question 832155: Graph the line with slope and -intercept .
Click here to see answer by richwmiller(17219)

Question 832192: what is the relationship between these two lines y=7-x and y=x+3?
Click here to see answer by josgarithmetic(39617)

Question 832322: The line through (4,2) parallel to 3x + y + 8 =0
Click here to see answer by LinnW(1048)

Question 832314: Which best describes the differences between the graphs of f(x)=-5x+3/4 and g(x)=-10x+3/4? Which is steeper and why? and is this question best answered by using a graphing calculator?
Click here to see answer by Fombitz(32388)

Question 832567: Explain how you could solve -3p+7 is greater than or equal too -2 without multiplying or dividing each side by a negative number?
Click here to see answer by Alan3354(69443)

Question 832615: 2/3a-5=1/3a+5
Please help me by showing the work to get a solution,
I don't want the answer given to me, just need help on how to get there
Thanks a lot !
Click here to see answer by JulietG(1812)

Question 832618: 5(a-1)+3=28
Click here to see answer by JulietG(1812)

Question 832619: Hello there. I have a question regarding slopes. How do you algebraically find the equation of a line whose slope is -2/3 and contains the point (-18,14)?
thanks, Max
Click here to see answer by math-vortex(648)

Question 832573: how do you use graphing to solve for 2 variable equation? y=3x+2 ; y=-x-2 is the problem.
we did y-2/3=3x/3(+2-2) and got y=2/3
then y+2=-x ...then we were stumped. Do you just plug in any number for the y ?
Click here to see answer by math-vortex(648)

Question 832754: Please help me solve for k
6(k-1)-(5k-9)= -6
I have tried solving it as follow:
6k-6-5k-9= -6
-5k -5k
k-15= -6
+15 +15
k=9
Click here to see answer by rothauserc(4718)

Question 832757: Please help me solve for w:
7w/4 +3 = 9w/10 +6
Click here to see answer by stanbon(75887)

Question 832775: Help me solve this please:
3n-6+n=2(2n-6)
I tried to solve it and came up with this solution:
4n-6=4n-6
and this is where im stuck.
Click here to see answer by LinnW(1048)

Question 832775: Help me solve this please:
3n-6+n=2(2n-6)
I tried to solve it and came up with this solution:
4n-6=4n-6
and this is where im stuck.
Click here to see answer by josgarithmetic(39617)

Question 832905: What is x?
1/2x +10 = -1/4x +54
Click here to see answer by JulietG(1812)

Question 832905: What is x?
1/2x +10 = -1/4x +54
Click here to see answer by TigerAlgebra(40)

Question 833022: The fuel efficiency for a certain midsize car is given by
E(v) = −0.011v2 + 1.446v + 3.8
where E(v) is the fuel efficiency in miles per gallon for a car traveling v miles per hour.
(a) What speed will yield the maximum fuel efficiency? Round to the nearest mile per hour
MPH?
(b) What is the maximum fuel efficiency for this car? Round to the nearest mile per gallon.
MPH?

Click here to see answer by josmiceli(19441)

Question 833059: Write an equation in standard form of the line that passes through the given point and has the given slope m. I would like some help on solving these equations and an explanation on how to solve them. (5,-1) m=2, (-2,6) m=1, (-7,8) m=-3, (9,-10) m=-4, (-15,-4) m=1/2
Click here to see answer by stanbon(75887)

Question 833053: The line a(12,x) and b(x,8) has a slope of -3/7 what is the value of x. How do I find it?

Click here to see answer by josgarithmetic(39617)

Question 833053: The line a(12,x) and b(x,8) has a slope of -3/7 what is the value of x. How do I find it?

Click here to see answer by MathTherapy(10552)

Question 833129: Solve the system.
x+5y+4z=-37
4y+2z=-22
z=-3
Click here to see answer by TigerAlgebra(40)

Question 828854: (6,2) (5,5)what is the equation of these giving points?
Click here to see answer by tommyt3rd(5050)

Question 829255: through: (2,1), slope=1 need step to solve
Click here to see answer by tommyt3rd(5050)

Question 833180: Ordered pair for y=1/2x-1
Click here to see answer by Fombitz(32388)

Question 833219: linear equations algebraically -2(5y-1)-y=-4(y-3)
Click here to see answer by Fombitz(32388)

Question 833193: Given y=-2/3x+1, write the equation of the line that is perpendicular and passes through the point (6,2) in slope intercept form.
Click here to see answer by LinnW(1048)

Question 833280: . Solve the nonlinear inequality: (x−1)(x−3)(x−5)2 ≥ 0 Solve by marking zeros and
undeﬁned points on a number line and checking signs in the intervals created as in the
examples in the narrative. Express your answer in interval notation.
Click here to see answer by Fombitz(32388)

Question 833291: The y-intercept of the line whose equation is 2x + 5y = 8 is?
A) 8
B) 4
C) 8/5
Click here to see answer by Alan3354(69443)

Question 833290: http://gyazo.com/3d7f07039ce76e01f79829c836621662
This is a picture of the question
Click here to see answer by ankor@dixie-net.com(22740)

Question 833407: find the vertical, horizontal, and oblique asymptotes, if any, for the following rational function
r(x)=15x/x+11
Click here to see answer by stanbon(75887)

Question 833402: use completeing the square to describe the graph of the following function. support your answer graphically.
f(x)=-x^2+2x+3
Click here to see answer by josgarithmetic(39617)

Question 833393: The fuel efficiency for a certain midsize car is given by
E(v) = −0.011v2 + 1.446v + 3.8
The speed yields 66 but I don't know how to find out What the maximum fuel efficiency for this car is MPG please show me how I am so lost.
Click here to see answer by richwmiller(17219)

Question 833542: Suppose that y is directly proportional to x.
If y = 6 when x = −1, what is the value of y when x = 10?
(Your answer should be a number.)
Click here to see answer by stanbon(75887)

Question 833544: A line is parallel to y = 2x + 3 and goes through the point (1, 9).
Choose the TWO correct options from the following list.
Select one or more:
a-The equation of the line is y = 2x + 10.
b-The equation of the line is y = 2x + 7.
c-If two lines intersect at a point on the x-axis, they have the same y-intercept.
d-If two lines intersect at a point on the y-axis, they have the same x-intercept.
e-The equation of the line is y = 3x + 7.
f-If two lines are parallel, they have the same gradient.
Click here to see answer by richwmiller(17219)

Question 833521:

Click here to see answer by Alan3354(69443)

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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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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