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

Tutors Answer Your Questions about Linear-equations (FREE)

Question 283031: Find the slope if it exists:
y=-8x+4
Click here to see answer by sparks211a(3)

Question 283034: Graph the equation and identify the y intercept:
y=1/5x
the graph is y is -20 by 20
and x is -20 by 20
Click here to see answer by Deina(147)

Question 282932: City A is 60 miles East of City B. A car leaves city a traveling East at 30 mph and at the same time a car leaves city B traveling East at 60 mph. How long will it take the car leaving from city B to catch the car leaving from city A.

Click here to see answer by MathTherapy(10552)

Question 283036: Find the slope if it exists:
x+5y=10
Click here to see answer by richwmiller(17219)

Question 283091: How do I do the following 2 problems related to parallels and perpendiculars?
"Write an equation of the line through the point (a) parallel to the given line and (b) perpendicular to the given line". I must show my work. I am a 53 year old non-traditional student, and this algebra is really difficult for me to understand. Thank you so much for your time, I really appreciate it! Have a blessed day...Kathye Watson
1. Point = (3, -2) Line = 5x - 4y = 8
a)parallel = ? b)perpendicular = ?

Click here to see answer by richwmiller(17219)

Question 283041: Please help me? Use the slope-intercept form. Find the equation of the line that contains the point (-3, 4) and has slope -3/4.
Click here to see answer by richwmiller(17219)

Question 283039: . Simplify - 5 (7 � 2 ) � 3(4 � 7 )

Click here to see answer by richwmiller(17219)

Question 283027: Find the y intercept and the x intercept for this equation:
4x-2y=8
Click here to see answer by jojo14344(1513)

Question 283025: I am suffering with this, can u plkease help me:
y=-2/3x-1
need to graph it on a y -20 an 20 and x-20 and 20 graph
need to find the y inercept ordered pair
Click here to see answer by Alan3354(69443)

Question 283028: Determine whether 2 is the solution of the equality:
x>-2
yes or no
Click here to see answer by dabanfield(803)

Question 283028: Determine whether 2 is the solution of the equality:
x>-2
yes or no
Click here to see answer by nabla(475)

Question 283026: graph the line containing the given pair of points and find the slope.
(5,4),(-4,-3)
graph it on a y is -10,10 graph and x is -10 an 10 graph.
then find the slope- m=
Click here to see answer by oberobic(2304)

Question 283134:
Click here to see answer by richwmiller(17219)

Question 283150: Hello, I'm not quite sure how to "write an equation of the line that passes through the given points."
An example is (-1,0), (0,-2)
Thank You,
Grace
Click here to see answer by richwmiller(17219)

Question 283156: A car goes 30 miles per hour on a 1 mile track and on his second lap he wants his average speed to be 60 miles per hour. What is his speed on the second lap?(teacher said not 90 miles per hour)
Click here to see answer by Alan3354(69443)

Question 283103: In 1990 las vegas had a population of 853,000. From 1990 through 1996 the population increased at an average rate of about 58,000 per year. Write a linear model for the population of Las Vegas. Let l represent th epopulation of las vegas

Click here to see answer by checkley77(12844)

Question 283247: can u tell me wat 20x-5y=1.2 is caz i got an answer of 5 and i dont know if its right.
Click here to see answer by richwmiller(17219)

Question 283247: can u tell me wat 20x-5y=1.2 is caz i got an answer of 5 and i dont know if its right.
Click here to see answer by Alan3354(69443)

Question 283287: x-y=3, -6+6y=17
I need help with this problem
Click here to see answer by richwmiller(17219)

Question 283289: How to solve: x+y=12
3x-2y=6
Click here to see answer by oberobic(2304)

Question 283341: how to find slope of (4,1) and (8,-5)
Click here to see answer by nerdybill(7384)

Question 283338: this question is concerned with the solution of the linear system,
y = mx + b
y = nx + c
1) if the system has an infinite number of solutions, discuss the relationships among the four constants.
Click here to see answer by Theo(13342)

Question 283370: how do i solve this.. y=x+1 i need to set of coordinates but i don't know how to get the second set of corrdinates from this problem.
Click here to see answer by richwmiller(17219)

Question 283406: Determine whether the graphs of the equations are parallel lines, perpendicular lines, or neither.
3x - 8y = 20
32x + 12y = 20
Click here to see answer by richwmiller(17219)

Question 283476: graph the equation and identify the Y intercetpt Y=3x-9
Click here to see answer by richwmiller(17219)

Question 283476: graph the equation and identify the Y intercetpt Y=3x-9
Click here to see answer by oberobic(2304)

Question 283483: solve for d, c=2d
Click here to see answer by jim_thompson5910(35256)

Question 283508: find the slope of the line containing the points (2,-3)and(1/3,4)
Click here to see answer by user_dude2008(1862)

Question 283530: Find the slope-intercept equation
slope 9 and y-intercept (0,3) y=
Thank you
Click here to see answer by richwmiller(17219)

Question 283540: how do u solve (-3x)-y=9 in slope intercept form?
Click here to see answer by richwmiller(17219)

Question 283544: Whats the slope of each line?
4x-8y=12
Click here to see answer by richwmiller(17219)

Question 283549: How to do you solve problems like this?
Which of the following equations represents a line l that goes through (2,1) and has slope �3?
Answers: Y=-3x+6
y = �3x + 3
y = 3x � 7
y = �3x + 7
Click here to see answer by checkley77(12844)

Question 283547: Whats the slope of each line?
4x-8y=12
Click here to see answer by checkley77(12844)

Question 283542: Write an equation of the line containing the given point and parallel to the given line. (3,5);x+3y=2
Thank you
Click here to see answer by checkley77(12844)

Question 283539: solve by elimination method 0.3x -0.2y = 4 and 0.4x+0.3y=5/19 system of equations
Click here to see answer by checkley77(12844)

Question 283704: How do I solve this problem for Solving Systems of Linear Equations by Addition:
-10x-y= -3
-2x+y= -9
Click here to see answer by Alan3354(69443)

Question 283702: Find an equation of the lines having the given slope and containing the given point m=0,(0, -4)
Thank you
Click here to see answer by richwmiller(17219)

Question 283749: I am practicing for my placement exam at Penn State and the practice quiz gave me this:
"Find an equation of the line containing the points (-7,3) and (3, 1)."
I thought I knew how to do it by finding the slope first and then plugging in an ordered pair and solving for B. BUT the quiz said my answer was wrong and that the correct answer is "x + 5y = 8"
My question is, how in the world did it get that answer?????
An explanation would be very beneficial!! Thank you!!!!!
Click here to see answer by richwmiller(17219)

Question 283756: Identify the y intercept y=x+4
Click here to see answer by Alan3354(69443)

Question 283761: What is the substitution method of equation:
x + 3y = 2
-x + y = 1
Click here to see answer by richwmiller(17219)

Question 283769:
Click here to see answer by cassierussell(3)

Question 283870: determine the distance between the points (3,5) and (6,9)
Click here to see answer by Alan3354(69443)

Question 283894: how do I solve the following:
2x = 2 - y
3x + y = -1
Click here to see answer by richwmiller(17219)

Question 284039: What does it mean to be a solution to a line?
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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