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

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Question 578236: I have been struggling with this question for hours.
I need to find an equation of a line.
slope 8 (-7,6)
Help!
Click here to see answer by richwmiller(17219)

Question 578236: I have been struggling with this question for hours.
I need to find an equation of a line.
slope 8 (-7,6)
Help!
Click here to see answer by jim_thompson5910(35256)

Question 578366: Determine wheter (-8,1) is a solution for 9x+4y=1
Click here to see answer by Alan3354(69443)

Question 578354: I 'm trying to figure out -1y= -1/2 x - 4 I'm tryin to figure out for x ?
Click here to see answer by ankor@dixie-net.com(22740)

Question 578605: graph -2x+1
Click here to see answer by jim_thompson5910(35256)

Question 578607: please help me solve this question
4y-12=4x find the intercepts and then use them to graph the equation using the graphing tool to graph the line. use the intercepts when drawing a line. if only one intercept exists use it and another point to draw the line
Click here to see answer by ankor@dixie-net.com(22740)

Question 578758: You have two options, to buy a cell phone plan or pay as you go. Ignore the cost of the phone, text messages and data plan. Base your choice only on the call minutes you expect to consume each month. The plan costs $50 per month calls are free up to 8 hours. Any extra minute for that month will cost you $0.25. Pay as you go has a flat rate of $0.15 per minute. Graph the cost of the two options with the monthly minutes and find the range in which the plan is more convenient.
Click here to see answer by dfrazzetto(283)

Question 578661: I have two problems I need help with. WIll you please help me.The problems are as following:
write each equation in slope-intercept form. Then identy the slope and the y intercept for each line. ex. 2x-y=12
and find an equation of the line that passes through the given point and has the given slope. Express your answer in slope-intercept form. (8,0), m=-3

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

Question 578864: How do you write 7x+9y=45 in slope formula form
Click here to see answer by Tatiana_Stebko(1539)

Question 578908: on graph paper graph the line that goes through the points (-6,3) and (-3,-1).
A) what is the slope of the line?
B) what is the y-intercept?
C) find the equation of the line.
Click here to see answer by Gogonati(855)

Question 579050: LINEAR SYSTEMS ALGEBRA; 7X-3Y=-23, X+5Y=32; AM TRYING TO HELP MY GRANDSON AND HAVE NO IDEA WHERE TO START.
THINK I HAVE DONE ONE CORRECTLY X-Y=3, 2X-2Y=6 (I BELIEVE X = 4 AND Y = 1 BUT DO NOT HAVE ANY IDEA HOW TO SHOW THE WORK;
PLEASE AND THANK YOU
Click here to see answer by scott8148(6628)

Question 579073: Solveing systems by graphing: X=y+7 , y=x+7. Is this infinitely more solutions? I'm not sure if you can help me with this thanks
Click here to see answer by jim_thompson5910(35256)

Question 579120: 2X + 6Y = 0
6X - 2Y = 0
I DO NOT UNDERSTAND. I HAVE TO GRAPH THIS EQUATION

Click here to see answer by mananth(16946)

Question 579289: write an equation for the line in point-slope form, passing through (4,9) and perpendicular to 2x-8y-16=0.
I put the original equation into slope-intercept form: 2/8x-2=y I'm not sure if that is right or where to go from there?
Click here to see answer by ankor@dixie-net.com(22740)

Question 579442: URGENT!!! PLEASE SOLVE!! Solve the system of equations. Make sure to check your solution.
2x + 5y = -6
4x + y = -12
THANK YOU!
Click here to see answer by richwmiller(17219)

Question 579441: URGENT!!! PLEASE SOLVE! Write an equation for the line that is perpendicular to the given line and that passes through the given point.
(1, 1) ; y = -1/4x + 7

Click here to see answer by richwmiller(17219)

Question 579439: URGENT!!! PLEASE SOLVE! Solve the system of equations. Make sure to check your solution.
y = x + 4
y = 3x
THANK YOU !
Click here to see answer by richwmiller(17219)

Question 579439: URGENT!!! PLEASE SOLVE! Solve the system of equations. Make sure to check your solution.
y = x + 4
y = 3x
THANK YOU !
Click here to see answer by Alan3354(69443)

Question 579423: what is the slope of the line passing through(0,4) and ( 2, 8) ?

Click here to see answer by jim_thompson5910(35256)

Question 579570: List the Four Rules for linear.
Click here to see answer by richard1234(7193)

Question 579580: What are the steps to solve a linear equation?
Click here to see answer by dfrazzetto(283)

Question 579562: I need help with a problem. Write an equation of the line containing the given point and parallel to the given line. (4,9); x + 2y=9
Click here to see answer by scott8148(6628)

Question 579968: What is an equation of a line perpendicular to y=2x-7?
Click here to see answer by mananth(16946)

Question 580188: find the slope of the following 5x+2y = 6
Click here to see answer by jim_thompson5910(35256)

Question 580192: Which of the following is the slope between the two points (1, 5) and (6, 4)?

1/5
-1/5
5
-5
Click here to see answer by jim_thompson5910(35256)

Question 580089: through(-2,2), parallel to -9x+8y=82 answer expressed in standard form. Please show steps
Click here to see answer by ankor@dixie-net.com(22740)

Question 580214: use the x- and y-intercepts to graph each linear equation for x+y=4
Click here to see answer by jim_thompson5910(35256)

Question 580298: Solve 4x + 10 = 12x-6
Solve.1/4 x + 3 = 3/4 x + 1
Explain how you achieved your answer.
Click here to see answer by jim_thompson5910(35256)

Question 580295: y=8x-4
Click here to see answer by jim_thompson5910(35256)

Question 580378: write an equation of a vertical line through (4,3).
write an equation of the line parallel to the line 8x - 2y = 7 passing through (2,-1).
find all values of x for which (x,6) is on the graph of f (x) = x2 + 3x -4
Click here to see answer by mananth(16946)

Question 580425: how do you work out 6x-6+8x=7x+8?

Click here to see answer by jim_thompson5910(35256)

Question 580486: solve this equation using the elimination method:
y=-18/19x-416/19
y= -17/19x-414/19
Click here to see answer by mananth(16946)

Question 580516: What is the x-intercept of the graph of the line 4x+2y=12
A) 4
B) 3
C) 2
D) 6
Click here to see answer by jim_thompson5910(35256)

Question 580657: How do I graph equations by using slope and y intercept?
Ex. y=3x+2
Click here to see answer by scott8148(6628)

Question 580693: I Really Need Your HELP with these Problems. I will be so thankful if you could HELP ME, Please...! I know how to solve the linear equations but I have a problem to write them in correct form, from the word problem.
Ps. (I already send these problems but in the first problem in the answer b) i put the wrong sign, now everyth is corrected. thank you)
Problem 1:
(Ps.proffesor gave us these answers for this problem and we have to find correct one: a) y=1/2x+17/2 B)y=2x+4 C)y=2x+15 D)y=-2x+16 )
1. A faucet is used to add water to a large bottle that already contained some water. After it has been filling for 3 seconds, the gauge on the bottle indicates that it contains 10 ounces of water. After it has been filling for 11 seconds, the gauge indicates the bottle contains 26 ounces of water. Let Y be the amount of water in the bottle X seconds after the faucet was turned on. Write a linear equation that models the amount of water in the bottle in terms of X.

2. Problem 2
A gas station sells 4820 gallons of regular unleaded gasoline in a day when they charge $1.35 per gallon, whereas they sell 3885 gallons on a day that they charge $1.40 per gallon. Find a linear equation that relates gallons sold to proce. Use this equation to predict the number of gallons sold at a price of $1.22 per galon.
(the answer should be 7251 gal, but I do not know how to put this together in order to have the answer)

Problem 3.
The projected U.S long-distance revenue (in billions of dollars)from 1999 to 2004 is given by the equatoin, y=3x+111 where X is the number of years 1999. Graph this equation and use it to estimate the amount of long-distance revenue in 2007.
(ps, you do not have to send me the graph cos I will know how to graph this, the answer should be $135 billion. Again, I do not know how to put this together
Click here to see answer by ankor@dixie-net.com(22740)

Question 580514: I tried to do this one and am not sure if I did it correct.
Solve this equation using the elimination method
y= 6x+63
17x=-308+9y
My answer is
-9(y=6x+63)= -9y= -54x-*567
+ 9y= -17x+308
my answer x=-259/-7
IS THIS CORRECT
Click here to see answer by ankor@dixie-net.com(22740)

Question 580945: One plane at 520 feet is ascending at a rate of 40 feet per minute, while another plane at 3800 feet is descending at a rate of 120 feet per minute. How long will it take the two planes to be at the same altitude?
Click here to see answer by ankor@dixie-net.com(22740)

Question 581040: what is the quation of a line with a slope of two thirds which contains pont (0,-4)
Click here to see answer by stanbon(75887)

Question 581053: solve the system of linear equation for x and y using substitution , elimination or graphical method.
2x+5y=8
-3x+y=5
Click here to see answer by stanbon(75887)

Question 581085: can you help me with this simple question i dont understand this find the slope and y intercept of the graph of the equation y=3x-7 i know that y=mx+b there fore m=3 b=-7 but how do i graph it is m like x and b y i need help please
Click here to see answer by rfer(16322)

Question 581141: My teacher gave us this workshetet that says sketch the graph on each line and they give me these numbers -Y - 2x = 0 she said were suppose to get the y on the other side of the = sign then make a table and graph it i know how to make a table but i dont know how to get the y to the other side
Click here to see answer by mananth(16946)

Question 581186: how yo find slope?

Click here to see answer by dfrazzetto(283)

Question 581129: Hi. I would like to know about this problem. -8x+3 greater than or equal to 27. Thank you.
Click here to see answer by KMST(5328)

Question 581181: x + 3y + z = 10
2x + y - z = 1
3x - 2y - 8z = -3
RE: 3x3 Systems - Methods to solve this by substitution
Click here to see answer by Edwin McCravy(20055)

Question 581341: 3.Write the equation of the line which passes through (�4, 2) and is parallel to y = �x + 6 in slope-intercept form
Click here to see answer by nyc_function(2741)

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