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

Algebra ->  Coordinate-system -> Questions on Algebra: Coordinate systems, graph plotting, etc answered by real tutors!      Log On


   



Tutors Answer Your Questions about Coordinate-system (FREE)


Question 118744: What is the graph of x + y = 1 ?
Thank you

Click here to see answer by jim_thompson5910(35256) About Me 

Question 118746:
What are the points that lie on the line 2x + 3y + 5 = 0
Thank you

Click here to see answer by checkley71(8403) About Me 

Question 118863: Find the center and radiu of the circle and sketch its graph.
x%5E2%2By%5E2 = 25

Click here to see answer by Edwin McCravy(20054) About Me 

Question 118868: We are using McDougal Littrells Algebra 1 book for my math class. My teacher uses homework generated from a web site. I do not know the site so I'm having difficulty getting an explanation of it. Below are the instructions along with a few problems.
"Extra Practice 4.1
In 1-12, sketch the lines on the coordinate plane. Then find the point at which the lines intersect.
1.) x=3, y=2
2.) x=-2, y=4 "
I don't understand what I'm being asked to do; x and y in these problems are points on a graph rather than a line, and if they're treated as a slope and y intercept- it still only graphs a single line (which will intersect with nothing!) What am I missing here?

Click here to see answer by Earlsdon(6294) About Me 

Question 118836: Please solve y > 0 when x is =
Thanks

Click here to see answer by checkley71(8403) About Me 

Question 119182: WRITE AN EQUATION OF THE LINE PASSING THROUGH THE POINT (3,4) AND IS PERPENDICULAR TO THE X-AXIS
THIS QUESTION IS FROM INTEGRATED MATHEMATICS TEXTBOOK

Click here to see answer by solver91311(24713) About Me 

Question 119191: Find the x and y intercepts of the equation 3x-5y=9
Click here to see answer by jim_thompson5910(35256) About Me 

Question 120260: PLEASE HELP ME ANSWER THIS PROBLEM:

-2[(-K-3)(-2)-3]=(-3-3K)(-2)TO THE POWER OF 3 THEN MINUS 3 TO THE POWER OF 2
THANK YOU SO MUCH!

Click here to see answer by checkley71(8403) About Me 

Question 120349: Write the equation in slope-intercept form. Then graph the equation.
18. 3/2x + 3/2y = 3/4
The numbers with the slashes are fractions.
Thank you so much!

Click here to see answer by jim_thompson5910(35256) About Me 

Question 120516: please help me find the distance between these two points and the midpoint of the line segment joining them (-1,1),(-1+3sqrt3,4
Click here to see answer by solver91311(24713) About Me 

Question 120414: which one passes through the point (0,2)?
y=3x+1
y=7x=2
y=2x+3
y=9x+8

Click here to see answer by tutor_paul(519) About Me 

Question 122455: The directions to the question: find the equation of the line parallel to the line 5=-10x-10y that passes through the point (-2,1). I need the answer to this question which i'm having trouble to find. Please help answer and thank you for your time.

the answer to tis question is Y=X+3
How to do?
from the previous eqn 5=10x-10y
Let 10y=10x-5
Becos u have to find gardient from thids eqn
Y=MX+C
10y=10x-5 (divide by 5)
2y=2x-1
bring the 2 over by dividing by 2
y=x+ 1/2
So from here u know that gradient is 1
x= -2 and y=1
by sub the 2 value
1=(-2)(1)+c
C=3
so the eqn is Y=x+3

Click here to see answer by feb feb(1) About Me 

Question 122454: The directions to the question: find the equation of the line parallel to the
y=4x-2 that passes through the point (0,4). I don't know how to find the answer to this problem. Please help and thank you for your time.

Click here to see answer by oscargut(2103) About Me 

Question 122456: The directions read: find a common solution for the system of equations -3y+12x=9 and x-y=0. I think the answer is (1,1) but i'm not sure if i'm correct. Please look over it and if it's correct just say i did it right, but if it's wrong then give me the answer and show how you got to that answer.thank you for your time.
Click here to see answer by oscargut(2103) About Me 

Question 122459: I'm supposed to choose between true or false for this statement. a line with a slope of zero is parallel to the x-axis, and a line with an undefined slope is parallel to the y-axis. i think it's false, but am i right? if not then tell me that it's true. Thank you for your time.
Click here to see answer by tutor_paul(519) About Me 

Question 122457: My directions read: find the slope of a line parallel to the line -x=2y+5. i think the answer to this question is m=-2. I'm not sure if i'm correct, but if i'm wrong show the correct answer and show how you got it. thank you for your time.
Click here to see answer by tutor_paul(519) About Me 

Question 122458: My directions read: find a common solution for the system of equations y=3 and y=3x-3. i think the answer to this question is (2,3).i'm not sure if i'm correct, but if i'm not then show me the correct answer and how you got it. thank you for your time.
Click here to see answer by Fombitz(32388) About Me 

Question 122897: Please help me solve this. I am so confused. Thank you so much.
Find the y and x intercept for the equation -15x + y = 55

Click here to see answer by jim_thompson5910(35256) About Me 

Question 122981:
Directions: find a common solution for each system of equations. The equations are y=x+1 and y=3x-2. My answer for the equations was (1.5,2.5). Am I correct. If not show how you got the answer. Thanx.

Click here to see answer by checkley71(8403) About Me 

Question 122983: Directions: find a common solution for each system of equations. The equations are y=-3x and x+y=6. The answer i got to these equations was (-3,9). Am i correct? If not show how you got your answer. Thanx.
Click here to see answer by checkley71(8403) About Me 

Question 122997: all parallel lines have the same slope, and not all systems of equations have a common solution. Is this True or False?
Click here to see answer by stanbon(75887) About Me 

Question 122980: Directions: find a common solution for each system of equations. The equations are y=x+1 and y=3x-2. My answer for the equations was (1.5,2.5). Am I correct. If not show how you got the answer. Thanx.
Click here to see answer by scott8148(6628) About Me 

Question 123095: Directions are to solve this problem: the area of a rectangle is 256 m^2. The length of the rectangle is 4 times greater than the width. What are the length and width of the rectangle? My answer to this was L=32 and W=8. Am i correct?
Click here to see answer by oscargut(2103) About Me 

Question 123092: All parallel lines have the same slope, and not all systems of equations have common solution. Is that true or false?
Click here to see answer by johnnico6426(16) About Me 

Question 123103: directions: express each fraction as a decimal in simplest form. i expressed 7/33 as a decimal in simplest form 0.21 and a line over 21 to make it repeating. am i correct?
Click here to see answer by bucky(2189) About Me 

Question 123091: Multiplying number n by the reciprocal of 3 is the same as x/3, and all integers divided by zero equal zero. Is that true or false?
Click here to see answer by stanbon(75887) About Me 

Question 122990: Directions: On a coordinate system on a graph, graph each system of equations on the same set of axes. name the point of intersection. My two equations are -x=-3y-6 and -4=2y-8x. How do i graph it and where do i name the point of intersection?
Click here to see answer by MathLover1(20849) About Me 

Question 122989: Directions: On a coordinate system on a graph, graph each system of equations on the same set of axes. name the point of intersection. My two equations are -x=-3y-6 and -4=2y-8x. How do i graph it and where do i name the point of intersection?
Click here to see answer by MathLover1(20849) About Me 

Question 122987: Directions: on a coordinate system on a graph, graph each system of equations on the same set of axes. name the point of intersection. My two equations are y=3x+1 and y=x-1. How do i graph them and where do i name the point of intersection?
Click here to see answer by MathLover1(20849) About Me 

Question 122994: Multiplying a number n by the reciprocal of 3 is the same as x/3, and all integers divided by zero equal zero. Is this true or false?
Click here to see answer by ankor@dixie-net.com(22740) About Me 

Question 123323: 2x+y=7
help me step by step on this problem please

Click here to see answer by sajankumar(7) About Me 

Question 123363: Find the slope and y-intercept of the following
y=3x-5
5x-2y=3

Click here to see answer by praseenakos@yahoo.com(507) About Me 

Question 123593: Please tell me if I am correct. I am performing indicated operation in lowest terms.
%282%2F21x%29-%284%2F15x%5E2%29
My LCD = 105x%5E2
%2810x-28%29%2F105x%5E2 by taking lcd multiplied by both numerators2%2A105x%5E2 reduced to 2%2A5x and 4%2A105x%5E2 reduced to 4%2A7
final answer of 2%285x-14%29%2F105x%5E2

Click here to see answer by chitra(359) About Me 

Question 123737: how do i write the slope intercept form of an equation of the line that passes through the given point and is perpendicular or parallel to the graph of each equation? how can i remember the steps for solving this? is there an easier way to solve these problems?
someone please help me asap. thanks
1. (3,2),y= x+5
2. (-1,-2),3x-y=5
3. (12,3), y=4/5x + 10
4. (-2,2), y= -1/5x + 9
5. (-4,1), 4x+7y=6
6. (2,4), x-6y=2

Click here to see answer by checkley71(8403) About Me 

Question 123978: find the slope and y-intercept of the line represented by each of the following equations...
2x-3y=6

Click here to see answer by checkley71(8403) About Me 

Question 124076: I am trying to check my daughters homework and I was wondering if she got this right 3x+2y=6
She got -3/2+3
Thanks
She also shows a graph

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

Question 124299: could I please have help with this question?
Solve the following system of equations by graphing:
y=5x-7
y-5x=8
thank you

Click here to see answer by stanbon(75887) About Me 

Question 124446: M(-2,-2) is the midpoint of RS. If S has coordinates (2,2) find the coordinates of R.
Creating a graph I get (-6, -2). If that's correct is there an equation I can follow to get to the answer?
Thanks for your help!

Click here to see answer by stanbon(75887) About Me 
Question 124446: M(-2,-2) is the midpoint of RS. If S has coordinates (2,2) find the coordinates of R.
Creating a graph I get (-6, -2). If that's correct is there an equation I can follow to get to the answer?
Thanks for your help!

Click here to see answer by checkley71(8403) About Me 

Question 124002: What formula do i use to solve six problems, who's directions say
write the slope-intercept form of an equation of the line that passe through the given point and is perpendicular to the graph of each equation.?
and the formula that i use do i work the problems as i would for the problems that say write the slope-intercept form of an equation of the line that passe through the given point and is parallel to the graph of each equation.?
here's a few problems for example
(-2,-2) y=-1/3x+9
(-4,-3) 4x+y=7
(2,4) x-6y=2
(-4,1) 4x+7y=6
(4,-5) 2x-5y=-10
need help ASAP
thanks

Click here to see answer by solver91311(24713) About Me 

Question 125144: How many liters of a 60% acid solution must be mixed with a 75% acid solution to get 20 LITER of a 72% solution ?
Click here to see answer by josmiceli(19441) About Me 

Question 125318: Graph the linear equation in two variables: y=-6x-5
Click here to see answer by jim_thompson5910(35256) About Me 

Question 125660: Segmnet MN has midpoint P. If M has coordinates (5, -2)and P has coordinates (4, 2.5), what are the coordinates of N?
Click here to see answer by benni1013(206) About Me 

Question 127703: What is the answer to this: What is the slope of the line 6x-2y=36? Please help!
Click here to see answer by JessicaGill(40) About Me