Questions on Algebra: Coordinate systems, graph plotting, etc answered by real tutors!

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Question 588565: DTERMINE IF (1/3,-5)is a solution-3x-10y=51
Click here to see answer by Theo(13342)

Question 588608: A motorist, X, travelling at a uniform speed of 48 km/h passes a village at 6 a.m.. Another motorist, Y , travellingat a uniform speed of 66 km/h passes the same village at 6.30 a.m. Draw straight line graphs to show the journeys of X and Y between 6.30 a.m. and 9 a.m. , taking 4 cm to represent 1 hour on the time axis and 2 cm to represent 20 km on the the distance axis. Deduce from your graph the time at which both motrists are at the same distance from the village.
Click here to see answer by ankor@dixie-net.com(22740)

Question 589599: I have to determine the missing coordinate in the ordered pair so that it will satisfy the equation. The ordered pair is (? 3) and the equation is 4x-2y=19
Click here to see answer by josmiceli(19441)

Question 590456: How do you write an equation in standard form for a line that passes through a pair of points?
Click here to see answer by Alan3354(69443)

Question 590596: How do I find the polar coordinates of these rectangular points..(Sorry about the wording I'm so confused)?
1. (-√3,-1)
2. (-1,-√3)
I attempted two easier problems so if you could check them I'd appreciate it:)
1.(5,0)--> (5,π)
2.(0,-6)--> (π,6)
Click here to see answer by solver91311(24713)

Question 591217: what is the x-intercept of 4x-y=2?
Click here to see answer by jerryguo41(197)

Question 590648: Find the x- and y-intercepts for y = 1/3 x - 3.
Click here to see answer by jerryguo41(197)

Question 586908: How would you graph -2x+3y=6
Click here to see answer by jerryguo41(197)

Question 593652: Solve using elimination system
X+Y=2
X-Y=4
Click here to see answer by Alan3354(69443)

Question 595795: what are the coordinates of the point halfway between (-2,3)and (6,3)
Click here to see answer by jerryguo41(197)

Question 595795: what are the coordinates of the point halfway between (-2,3)and (6,3)
Click here to see answer by stanbon(75887)

Question 595987: f(x) = -x^2 + 6x + 40
Click here to see answer by unlockmath(1688)

Question 596164: find the functional values requested in the problem
F (t) =
F (3t) =
Click here to see answer by jim_thompson5910(35256)

Question 596181: Graph the line y=6
Click here to see answer by richwmiller(17219)

Question 596181: Graph the line y=6
Click here to see answer by jim_thompson5910(35256)

Question 596181: Graph the line y=6
Click here to see answer by math-vortex(648)

Question 596226: graph the line
y = 5x - 8
Click here to see answer by jim_thompson5910(35256)

Question 596227: solve the system
{ y = x + -2
{ y = -4x + 13
x =
y =
Click here to see answer by Alan3354(69443)

Question 596276: graph the equation
x = 6
Click here to see answer by jim_thompson5910(35256)

Question 596929: how do you write this problem? "write the equation of a line that goes through the point (3,-3) and had a slope of -0.5"
Click here to see answer by rfer(16322)

Question 597622: How to solve, 3x(6x-5) ?
Click here to see answer by Alan3354(69443)

Question 597567: draw the graph of each of the following equations on the same graph paper
a)y=2
b)y=6
c)y=2x-2
d)y=2x-6
do you obtain a parallelogram from these four lines?write down the coordinates of the vertices of the parallelogram
Click here to see answer by math-vortex(648)

Question 597640: In which quadrants of the standard coordinate plane below will the graph of y=-xsquared-3 lie?
Click here to see answer by jim_thompson5910(35256)

Question 597939: can not graph right. Need to know how to graph G(x)=2(x+(1/2))^2.
Click here to see answer by Alan3354(69443)

Question 598026: draw the graph of each of the following equation
y=2
y=6
y=2x-2
y=2x-6
Click here to see answer by math-vortex(648)

Question 599586: what is the slope of the line given by the equation below ?
y = 6x
Click here to see answer by stanbon(75887)

Question 599659: What is the slope of the line given below ?
y = 2/17x
Can You please Show work to How you got The answer Thank You
Click here to see answer by jim_thompson5910(35256)

Question 600552: an equation of the line that has slope of 3 and a y-intercept of -2, is ?
Click here to see answer by jim_thompson5910(35256)

Question 600879: Use the coordinate grid to answer questions 9 and 10.
9. Which equation of a line is shown on the graph?
a. y = x + 1
b. x + y = 1
c. x = y - 1
d. y = x - 1
10. What is the slope of the line?
Click here to see answer by richard1234(7193)

Question 601084: 1.) P=(4,1); m=1/3
2.) x^2+4x-7=0
3.) (6+8i)-(-9+i)
4.) 2x^5=72x^3
5.) zeros: -3, -2,3; degree 3
This was part of my review for my algebra final it was 50 questions but im having a very hard time with these if you can please help me out that would be greattly appreciated....sincerely carolina
carolinaotero1@hotmail.com

Click here to see answer by solver91311(24713)

Question 601513: find the equation of a line that has the given properties. graph each line.
contains (9,3); perpendicular to the line x+3y=-27
Click here to see answer by mananth(16946)

Question 603335: How do I graph this problem y=2x-1?
Click here to see answer by jim_thompson5910(35256)

Question 604268: Find the slope of a line through the points (-1, 4) and (2, -5).
Find the slope of a line through the points (2, 5) and (3, 5).
Find the slope of a line through the points (3, 6) and (4, 2).
Find the slope of a line through the points (-1, -9) and (4, -2).
Click here to see answer by flame8855(424)

Question 604638: Please help me with this question. Determine if the following statement is true: The graph of the line y=mx+b intersects the x axis exactly once. A. The statement is always true B. The statement is never true C. The statement is true when m=0 D. This statement is true when m does not equal zero
Thank you for your time.
Click here to see answer by jim_thompson5910(35256)

Question 604966: What is the slope of a line that crosses through the points (-1, -8) and (2, 1)?
Click here to see answer by lynnlo(4176)

Question 605311: I am trying to solve the sytem of equations by graphing the equations on the same set of axes:
{y=x-4
{y=2x-5
Click here to see answer by solver91311(24713)

Question 605311: I am trying to solve the sytem of equations by graphing the equations on the same set of axes:
{y=x-4
{y=2x-5
Click here to see answer by ewatrrr(24785)

Question 605405: solve the system of equations by graphing the equations on the same set of axes:
{x-2y=-7
{3x+2y=3
Click here to see answer by solver91311(24713)

Question 605408: Decide whether or not the ordered pair satisfies the system of linear equations:
Yes or No
1. (2,-3) 2. (1/3,1/2)
{x=y+-1 {2x=10-y
{x-y+5 {x-4y=-5
Click here to see answer by Andr3w128(2)

Question 606681: (-1,1),(2,5)
how could you get an equation from graphing the coordinates?
Click here to see answer by mathie123(224)

Question 606681: (-1,1),(2,5)
how could you get an equation from graphing the coordinates?
Click here to see answer by ewatrrr(24785)

Question 606648: y=x+4 what is the value of x?

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

Question 607198: Y=-7/3x+3
Click here to see answer by jim_thompson5910(35256)

Question 607327: Long one, I'm sorry.. just having a bit of trouble with the regression line:
A farmer wants to find out the relationship between the amount of rain in march and the Crop yield in June. Statistics for a few years is shown in the following table:
March rainfall in inches (X): 3,7,2,6,5
Crop Yield in bushels per acre (Y): 5,12,4,10,6
Set the scatter diagram for the data. Does it appear to be positive linear correlation, negative linear correlation or no linear correlation?
Find the equation of the regression line (IMPORTANT)
Note: I did the scatter diagram, and it appears to be positive linear correlation, so that's not necessarily the issue.
I got Y=1.6x+0.02 for the regression line, and I don't know if that is correct.
Any help would be greatly appreciated!
Click here to see answer by solver91311(24713)

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