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

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Question 202663: graph the line containing the given pair of points and find the slope. (9,0) and (7,-7)
Click here to see answer by vleith(2983) About Me 
Question 202663: graph the line containing the given pair of points and find the slope. (9,0) and (7,-7)
Click here to see answer by rfer(16322) About Me 

Question 202697: Suppose f(x) is an odd function whose domain is all real numvers. If the ordered pair(5,-2) is on the graph of y = f(x), then another ordered pair on the graph is (-2,5), (-5,-2), (-5,2), (2,-5)????? thanks for your assistance.
Click here to see answer by jim_thompson5910(35256) About Me 

Question 202879: Please help me to understand how to understand and work out this problem I have many similar in composition to do. I just need to grasp the concept more thoroughly.
Problem: Find the equation of the line passing through the points (-2, -8) and (0, -2). Write your equation in slope-intercept form.
Thank You for the Help.
Scott Davey

Click here to see answer by rfer(16322) About Me 

Question 203141: 9+5
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Question 203309: 1. How do we write the equation of a horizontal line? What would be an example?
2. How do we write the equation of a vertical line? What would be an example?
3. The points (1, 3), (2, 5), (8, 17), (50, 101), and (1000, 2001) all lie on line M.
The points (1, -1), (2, -3), (8, -15), (50, -99), and (1000, -1999) all lie on line N.
a. Form the equations of both the lines. Show your work.
b. What are the co-ordinates of the point of intersection of lines M and N?
c. Write the co-ordinates of the intersections of lines M and N with the x-axis.
d. Write the co-ordinates of the intersection of lines M and N with the y-axis.

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

Question 203573: 1.Suppose that the width of a rectangle is 5 inches shorter than the length and that the perimeter of the rectangle is 50.
a) Set up an equation for the perimeter involving only L, the length of the rectangle.
Answer:
b) Solve this equation algebraically to find the length of the rectangle. Find the width as well.
2.5x+4y=12 for y
Answer:

Show your work here:
b) When graphed, this equation would be a line. By examining your answer to part a, what is the slope and y-intercept of this line?
Slope = ______
Y-intercept = _____
c) Using your answer from part a, find the corresponding value of y when x = 16.



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Question 203621: -x+5y=-15
Click here to see answer by checkley77(12844) About Me 

Question 203905: point A (-4,1) is in the standard (x,y) coordintae plane.what must be the coordinates of point B so that the line x=2 is the perpendicular bisector of AB
Click here to see answer by vleith(2983) About Me 

Question 204137: 7x+y=50
8x+9y=10

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Question 204132: 3. Construct the image of under the translation pictured in the figure by using the following:
1. Tracing paper
2. Compass and straightedge





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Question 204974: Find the slope of the line that contains the points (–4, –2) and (1,1).
Click here to see answer by RAY100(1637) About Me 

Question 204988: find the x and y intercepts of the function f(x)= x to the third - 9x
Click here to see answer by stanbon(75887) About Me 

Question 204990: solve for x: log(x + 2) + log(x-1)=1
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Question 204980: Write the equation in standard form using only integers and a positive coefficient for x. Match your result to the correct answer below.
a..x + 3y = 6
b...x – 3y = 2
c...–x + 3y = –6
d...x – 3y = 6

Click here to see answer by Alan3354(69443) About Me 

Question 204989: find the domain of:
(A) f(x)= the square root of (-x squared - 4x + 5)
(B) f(x)= ln(4t-3)
(C) f(x)= 1 over (x to the third + 3x squared - x - 3)

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

Question 204979: Line l goes throught the point (5,–2) and is perpendicular to the line through (–2, 1) and (–4, –2). Find the slope of l. Match your result to the correct answer below.
A) - 2/3
B) - 3/2
C) 7/3
D) 0

Click here to see answer by Alan3354(69443) About Me 

Question 205019: Line l goes through (1, 3) and is parallel to the line through (4, 3) and (–3, 1). Find the slope of l. Match your result to the correct answer below.
A) 7/2
B) 3
C) 2/7
D) Undefined


Thank you

Click here to see answer by Earlsdon(6294) About Me 
Question 205019: Line l goes through (1, 3) and is parallel to the line through (4, 3) and (–3, 1). Find the slope of l. Match your result to the correct answer below.
A) 7/2
B) 3
C) 2/7
D) Undefined


Thank you

Click here to see answer by Alan3354(69443) About Me 

Question 205018: Write down the equations of the line that are parallel to
y=8x-14, passing through (0,8.4)

Click here to see answer by checkley77(12844) About Me 

Question 205108: Write downthe equations of the lines that are parallel to
2y=5x+7, passing through (0,-3.5)

Click here to see answer by Alan3354(69443) About Me 

Question 205141: Write downthe equations of the lines that are parallel to
2y=5x+7, passing through (0,-3.5)

Click here to see answer by checkley77(12844) About Me 

Question 205452: how to graph:
y=3x-1

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Question 205629: Please help me to understand how to solve and graph for these problems

Click here to see answer by Alan3354(69443) About Me 

Question 205933: how are the quardrents numbered

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Question 205952: give the equation of a line whose graph concides with x+2y=4

Click here to see answer by Alan3354(69443) About Me 

Question 206310: I need help...
Line l goes through (1,3) and is parallel to the line through (4,3) and (–3,1). Find the slope of l. Match your result to the correct answer below.
A) 7/2
B) 3
C) 2/7
D) Undefined

Thank you!

Click here to see answer by Alan3354(69443) About Me 

Question 206377: I need to graph 3x+4y=16 and also 2x+3y=8x-10?
Can you help me I need it ASAP

Click here to see answer by checkley77(12844) About Me 

Question 206576: The line joining (-2,1) to (6,4), is parallel to the line joining (-q,5) to (4,q). Find the value of q.
It would certainly be a great pleasure for me if you solve my question.
Thank you very much indeed.

Click here to see answer by nerdybill(7384) About Me 
Question 206576: The line joining (-2,1) to (6,4), is parallel to the line joining (-q,5) to (4,q). Find the value of q.
It would certainly be a great pleasure for me if you solve my question.
Thank you very much indeed.

Click here to see answer by Theo(13342) About Me 

Question 206611: Brendan enjoys mountain biking. He has found that the maximum gradient up which he can cycle is 0.3 and the maximum gradient that he can safely descend is 0.5. his map has a scale of 2cm to 1 km with contours every 25m.
a-What is the minimum distance between the contours on his map that allows him to go uphill?
b-What is the minimum distance between the contours on his map that allows him to go downhill?
Please I need your help. This question really confuses me. Solve this queston as soon as possible. Thank you very much indeed!

Click here to see answer by Theo(13342) About Me 

Question 206844: Could someone help me out here; find the coordinates of the point C, halfway between the points A(5,1) and B(-2,7). I dont really understand how this works =(
Click here to see answer by Alan3354(69443) About Me 
Question 206844: Could someone help me out here; find the coordinates of the point C, halfway between the points A(5,1) and B(-2,7). I dont really understand how this works =(
Click here to see answer by scott8148(6628) About Me 

Question 207448: The questions says: Write 4x + 9y in polar form.
What does it mean to convert to polar form?
How is this done?
Thank you.

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

Question 207490: the record high temperature for a date is 95.6 degrees above zero which real number corresponds to the situation
Click here to see answer by stanbon(75887) About Me 

Question 207615: How do I plot this equation on a graph? y=|x|+3
Click here to see answer by Edwin McCravy(20054) About Me 

Question 207614: How do I plot this equation on a graph? y=|x|+3
Click here to see answer by Edwin McCravy(20054) About Me 

Question 207872: (5,-3) (-1,5)
Click here to see answer by checkley77(12844) About Me 

Question 208444: y=2x-3
Click here to see answer by Alan3354(69443) About Me 

Question 208552: How do i answer this problem An equation of the form y=kx where k =/ 0
describes a direct variation linear extra polation

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Question 208782: Solve for the variable. non-integer answers may be left in fractional form or decimal form
3/5x + 7/10= 1/3x + 3/2

Click here to see answer by checkley77(12844) About Me 

Question 208856: how do i describe the possible locations, in terms of quadrants or axes, for point a(x, y) if x and y satisfy the following conditions...... A. XY< 0 ------ B. XY> 0 ---------- C. XY=0
Click here to see answer by stanbon(75887) About Me 
Question 208856: how do i describe the possible locations, in terms of quadrants or axes, for point a(x, y) if x and y satisfy the following conditions...... A. XY< 0 ------ B. XY> 0 ---------- C. XY=0
Click here to see answer by jsmallt9(3758) About Me 

Question 209015: a triangle region has a perimeter of 66 meters. the length of the first side is two-thirds of the second side. the length of the third side is 14 meters shorter then the second side. what are teh lengths of the three sides of the triangular region?
Click here to see answer by rfer(16322) About Me 

Question 209152: how can you describe a pattern formed by points
Click here to see answer by rapaljer(4671) About Me