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

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Question 311082: which of the following is an equation of the line in the xy-plane that passes through the point (0,-3) and is perpedicular to the line y=-4x+2?
A) t+4
B) t+5
C) t+6
D) t+7
E) t+8
Click here to see answer by Alan3354(69443)

Question 311075: if the slope is 4
and the point is ( -3 , 0 ) then what is the equation of the line in slope intersect form
Click here to see answer by checkley77(12844)

Question 311106: Consider the line x + 6y= -3.
6y=-x-3
y=-1/6x-1/2
What is the slope of a line perpendicular to this line?
Opposite of -1/6= 6!
What is the slope of a line parallel to this line?
It's just the same as the original, -1/6.
I hope I helped!
Click here to see answer by Miceandwine(15)

Question 311152: I have constructed a linear graph with the points of 2,0, 4,3 and 6,6. How do I use the formula y = mx + b
Click here to see answer by Alan3354(69443)

Question 311153: Wrong e-mail address. I have constructed a graph of points (2,0), (4,3) and (6,6) how do I apply this to the formula of y = mx + b
Click here to see answer by Alan3354(69443)

Question 311144: Write an equation in slope-intercept form (y=mx+b, where m is the slope and b is the y-intercept) of the line that passes through the given point and is perpendicular to the give line.
(5, -8); y=5/2x+4
Click here to see answer by Fombitz(32388)

Question 311176: Write an equation in point-slope form for the line with the given slope that ontains the given point.
slope= -1; (6, -1)
Click here to see answer by checkley77(12844)

Question 311168: x-y+3=0
Click here to see answer by checkley77(12844)

Question 311213: Solve
-5x-2=-26+x
Click here to see answer by nyc_function(2741)

Question 311259: What is the slope of 4y=x+4
Click here to see answer by vleith(2983)

Question 311186: 3. Solve for X, Y, and Z in the following systems of three equations:
a. X + 2Y + Z = 22
X + Y = 15
3X + Y + Z = 37
b. 10X + Y + Z = 603
8X + 2Y + Z = 603
20X - 10Y - 2Z = -6
c. 22X + 5Y + 7Z = 12
10X + 3Y + 2Z = 5
9X + 2Y + 12Z = 14

Click here to see answer by Fombitz(32388)

Question 311256: What is the slope of 4y=x+4
Click here to see answer by rfer(16322)

Question 311334: 4/5 ( x + 5/8 ) - 2/3 ( x - 1/4 ) = 10/9. The book claims the solution is x = 7 but I simply dont get that answer. Am I doing it wrong ?
Click here to see answer by JBarnum(2146)

Question 311396: Use the echelon method to solve the system:
x + 3y + 4z = 14
2x � 3y +2z = 10
3x � 9y + z = 9
Click here to see answer by solver91311(24713)

Question 311395: Find the equation of a horizontal line going through (-5, -19)
Click here to see answer by solver91311(24713)

Question 311411: Write an equation of the line containing the given point and parallel to the given line. Express your answer in the form y=mx+b
(7,8);x+3y=7
Click here to see answer by solver91311(24713)

Question 311397: Find an equation in slope-intercept form (if possible)
Through (-8,1), with undefined slope
Click here to see answer by stanbon(75887)

Question 311436: 48 For each of the relationships below, explain whether you think it is best described by a linear function or a non-linear function. Explain your reasoning thoroughly.
a. The time it takes you to get to work as a function the speed at which you drive
b. The probability of getting into a car accident as a function of the speed at which you drive
c. A person's height as a function of the person's age (from age 0 to 100)

Click here to see answer by stanbon(75887)

Question 311437: How do you write the following question in point-slope form? Goes through the points (4,2) parellel to y=-3/4x-5
Click here to see answer by stanbon(75887)

Question 311435: 7. Which of the following are functions? Explain your reasoning for a, b, and c. Keep the definition of a function strongly in mind as you do this problem, it is not nearly as difficult as it may look. Think about whether the relationship between f(x) and x is consistent with being a function or not and explain your reasoning. Problems b & c are multi part relations so consider all parts when deteriming if they are funcitons.
a. f(x) = x 8
b. f(x) = 45 if x>2 otherwise f(x) = -4
c. f(x) = 4 if x>0 or f(x) = -4 if x<0 or f(x) = 4 or -4 if x = 0

Click here to see answer by stanbon(75887)

Question 311376: Graph the function g(x) = (x-1)3power
Click here to see answer by Fombitz(32388)

Question 311535: Can you please email me the formula and explaination of how to find the slope of a line?
Click here to see answer by stanbon(75887)

Question 311824: determine wheather (-9,1) is a solution of 4x-6y=-8
yes or no
Click here to see answer by rfer(16322)

Question 311851: What is a line with an undefined slope called ?
Click here to see answer by Alan3354(69443)

Question 311850: what is a line called with a slope of zero ?
Click here to see answer by Alan3354(69443)

Question 311856: what is the slope of perpendicular lines ?
Click here to see answer by tutorcecilia(2152)

Question 311866: Determine if the equations are intersecting, parallel, or coincident.
2x-y=c
x+2y=d
The variables c and d are throwing me off. Before I substituted coordinates to find an answer but what do I do with c & d.
Click here to see answer by ankor@dixie-net.com(22740)

Question 311800: Write an equation of the line in the form y =mx+b if the line has the same y-intercept as the line whose equation is 2y = 6x+8
and is parallel to the line whose equation is 4x + 4y = 20

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

Question 311956: F(x)=(3x -2) / (4x + 1) what is the value of f(-3)?
Click here to see answer by Fombitz(32388)

Question 312032: find they-intercept for this linear equation. 2\3x+1\9y=2

Click here to see answer by Fombitz(32388)

Question 312042: Find the slope of each line segment and interpret the results?
(62,7000) (64,7000) (67,10000) (70,12400)

Click here to see answer by Alan3354(69443)

Question 312091: solve and graph
4x+8>=4 and 3x-23>=14
The solution set is {x|x>= }
Click here to see answer by Fombitz(32388)

Question 312092: graph and write the solution in interval notation
x<7 and x>= -4

Click here to see answer by Fombitz(32388)

Question 312181: graph the following equation and name the x and y intercepts as ordered pairs 2x +y =4
Click here to see answer by Fombitz(32388)

Question 312166: HOW DO YOU FIND A PARALLEL EQUATION FROM Y= 6X-5 THAT PASSES THROUGH THE POINT (-6,5)
Click here to see answer by fractalier(6550)

Question 312158: Find three consecutive integers such that the sum of the first and twice the second is 122 minus three times the third.
Click here to see answer by checkley77(12844)

Question 312385: -3(5-2x)=-27
Click here to see answer by user_dude2008(1862)

Question 312383: Please help! I am lost in how to figure this out:
f(x)= -2x^2+2x+8
This one has several parts..
The x coordinate of the vertex?
The y coordinate of the vertex?
The equation of the line of symmetry?
The maximum/minimum of f(x)?
Is the value of f(1/2)=17/2 maximum or minimum?
Thanks!
Click here to see answer by Edwin McCravy(20055)

Question 312396: Write the equation in slope-intercept form of the line that has a slope of -3 and contains the point (1, 1).
Click here to see answer by nyc_function(2741)

Question 312534: Find the standard equation of the line that passes through the point (-2, 1) and is parallel to the line 6x - 5y = 4.
Click here to see answer by Fombitz(32388)

Question 312529: Help! Find the equation of the line having the given slope ans containing the given point. y=
2/3, (7,-1)
Thanks in advance
Click here to see answer by Fombitz(32388)

Question 312547: Find the standard equation of the line that passes through the point (5,9) and is parallel to the line x+6y=5.. Thankyou
Click here to see answer by Alan3354(69443)

Question 312548: Find the standard equation of the line that passes through the point (-8,5) and is parallel to the line 4x=5y+3.
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, 3871..3915, 3916..3960, 3961..4005, 4006..4050, 4051..4095, 4096..4140, 4141..4185, 4186..4230, 4231..4275, 4276..4320, 4321..4365, 4366..4410, 4411..4455, 4456..4500, 4501..4545, 4546..4590, 4591..4635, 4636..4680, 4681..4725, 4726..4770, 4771..4815, 4816..4860, 4861..4905, 4906..4950, 4951..4995, 4996..5040, 5041..5085, 5086..5130, 5131..5175, 5176..5220, 5221..5265, 5266..5310, 5311..5355, 5356..5400, 5401..5445, 5446..5490, 5491..5535, 5536..5580, 5581..5625, 5626..5670, 5671..5715, 5716..5760, 5761..5805, 5806..5850, 5851..5895, 5896..5940, 5941..5985, 5986..6030, 6031..6075, 6076..6120, 6121..6165, 6166..6210, 6211..6255, 6256..6300, 6301..6345, 6346..6390, 6391..6435, 6436..6480, 6481..6525, 6526..6570, 6571..6615, 6616..6660, 6661..6705, 6706..6750, 6751..6795, 6796..6840, 6841..6885, 6886..6930, 6931..6975, 6976..7020, 7021..7065, 7066..7110, 7111..7155, 7156..7200, 7201..7245, 7246..7290, 7291..7335, 7336..7380, 7381..7425, 7426..7470, 7471..7515, 7516..7560, 7561..7605, 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