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Question 1155051: What is the slope of a line perpendicular to the line whose equation is 12x-9y=135 fully reduce your answer
Click here to see answer by ikleyn(53611)

Question 1155610: Given the points ( 4, -3) and ( 2, 2) answer the following.
a. Find the slope of the line, L1, that goes through the points ( 4, -3) and ( 2, 2).
b. Write the equation of the line, L1. Write in slope intercept form.
c. Find the slope of the line, L2, that is perpendicular to L1.
d. Write the equation of the line, L2, that goes through the point ( -3, 5 ).
Click here to see answer by ikleyn(53611)

Question 1176815: A motorboat travels 165 kilometers in 3 hours going upstream. It travels 207 kilometers going downstream in the same amount of time. What is the rate of the boat in still water and what is the rate of the current?
Click here to see answer by n2(51)

Question 1161742: please can help me
thanks
“A frigid Florida winter is taking its toll on your sandwich. The sunshine state is the main U.S. source for fresh winter tomatoes, and its growers lost some 70 percent of their crop during January’s prolonged cold weather. The average wholesale price for a 25-pound box of tomatoes is now $30, up from $6.50 a year ago. Florida’s growers would normally ship about 25 million pounds of tomatoes a week; right now, they are shipping less than a quarter (8million). High demand has driven up prices and wholesalers are buying from Mexico. Based on that, some restaurants provided tomatoes only on request.”
a. Using the information above find the demand and supply curves in the market for winter tomatoes.
b. Calculate the price elasticity of demand for winter tomatoes as well as elasticity of supply using the midpoint method.

Click here to see answer by ikleyn(53611)

Question 1210547: Solve This Graphically 3x+y=2
Click here to see answer by ikleyn(53611)

Question 1210547: Solve This Graphically 3x+y=2
Click here to see answer by josgarithmetic(39730)

Question 1182886: WRITE THE EQUATION OF THE LINE PARALLEL TO 4X-5Y-10=0 THAT PASSES THROUGH (0,-3).
Click here to see answer by n2(51)

Question 1182886: WRITE THE EQUATION OF THE LINE PARALLEL TO 4X-5Y-10=0 THAT PASSES THROUGH (0,-3).
Click here to see answer by CPhill(2189)

Question 1182886: WRITE THE EQUATION OF THE LINE PARALLEL TO 4X-5Y-10=0 THAT PASSES THROUGH (0,-3).
Click here to see answer by ikleyn(53611)

Question 1164762: If a stock price goes from $10 to $12 from January 1st to January 31, from $12 to $9 from February 1st to February 28th, and from $9 to $15 from March 1st to March 31th is the price change from $10 to $15 a straight line?
It is clear that in each of the three time intervals mentioned there was a complex daily variation of prices as in an electrocardiogram. But what would be a simplified solution for a first naive view of the situation? Would a simple function hold up? What is the simplest function to represent this situation? Does your naïve initial and simplified model allow you to predict the behavior of the stock in the next month?
How can I use three “pieces” of lines to describe the price movements from the beginning of January to the end of March? Show the graph for the price movement.
Click here to see answer by CPhill(2189)

Question 1204563: Write an equation of the line that passes through the pair of points.
(−2, −3), (4, 5)
Click here to see answer by ikleyn(53611)

Question 455145: find the slope of a line perpendicular to the line that passes through 3 9 and 7 15
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Question 453353: what is the slope-intercept of 2x-7y=-24 passing through (9,11)
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Question 448805: graph the line that goes through point (3,8) and is parallel to the line whose equation is 6y-10x=30
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Question 448767: Write an equation of the line containing the given point and parallel to the given line. Express your answer in the form y=mx+b.
(8,9); x+7y=2
y=
Click here to see answer by ikleyn(53611)

Question 447764: Given the linear equation y=-7/4x-1, find the y-coordinates of the points (-4, ), (0 ), and (4, ). Please show all of your work. Plot those points and graph the linear equation.
Click here to see answer by josgarithmetic(39730)

Question 448477: Find the slope of the line that contains the points 9,8 and -2,1
Click here to see answer by ikleyn(53611)

Question 444813: I need to find the equation of the line containg (-2, -7) and (-5, -8)
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Question 428573: What is the equation of the line, in standard form, that passes through (4, -3) and is parallel to the line whose equation is 4x + y - 2 = 0?
Click here to see answer by MathTherapy(10719)

Question 430695: write and equation of the line containing the points (3,-1) and is parallel to 8x-7y=9
Click here to see answer by timofer(142)

Question 430695: write and equation of the line containing the points (3,-1) and is parallel to 8x-7y=9
Click here to see answer by ikleyn(53611)

Question 431238: which equation represents a line that passes through the points (2,3) and (-1, -3)?
Click here to see answer by josgarithmetic(39730)

Question 431238: which equation represents a line that passes through the points (2,3) and (-1, -3)?
Click here to see answer by ikleyn(53611)

Question 431339: how do u find the midpoint of the line segment of (10,-10),(9,-9)?

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Question 428471: I need to use substitution method
15x-10y=1
5y=-2+15x
Click here to see answer by greenestamps(13295)

Question 428471: I need to use substitution method
15x-10y=1
5y=-2+15x
Click here to see answer by ikleyn(53611)

Question 428476: Flying from Tokyo to London is approximately 6175 miles. On the way to London from Tokyo(against the wind) the flight took 13 hours. the return flight (with the wind) took 9.88 hours. Find the speed of the plane in still air and the speed of the wind current.
Click here to see answer by josgarithmetic(39730)

Question 420019: whats the slope-intercept form that contains the points (3,7) and (3,5)
Click here to see answer by ikleyn(53611)

Question 423677: what is the equation of a line that passes through (-5, 1) and is parallel to y = x + 4 ?
please show steps to help me understand
Click here to see answer by ikleyn(53611)

Question 730658: Please help with this question;
Determine the x-intercept and y-intercept of the graph x/3 + y/4 = 2. the answer that i got is x= -6 ; y= 8

Click here to see answer by ikleyn(53611)

Question 1210502: y=-5x+6

Click here to see answer by timofer(142)

Question 1210483: graph 3x=y
Click here to see answer by CPhill(2189)

Question 751582: Find x and y of the linear equations.:
3x+4x=8
x+4y=8
Show your work.
Click here to see answer by ikleyn(53611)

Question 1210468: Use the distance formula to find the distance between the points A = (a, b) and
B =(0, 0).
I must use d(A, B) = sqrt{(x_2 - x_1)^2 + (y_1 - y_2)^2}
You say?

Click here to see answer by ikleyn(53611)

Question 1166361: Helen and David are playing a game by putting chips in two piles (each player has twopiles P1 and P2), respectively. Helen has 6 chips and David has 4 chips. Each playerplaces all of his/her chips in his/her two piles, then compare the number of chips in his/hertwo piles with that of the other player's two piles. Note that once a chip is placed in onepile it cannot be moved to another pile. There are four comparisons including Helen'sP1 vs David's P1, Helen's P1 vs David's P2, Helen's P2 vs David's P1, and Helen's P2vs David's P2. For each comparison, the player with more chips in the pile will score 5point (the opponent will lose 5 point). If the number of chips is the same in the two piles,then nobody will score any points from this comparison. The nal score of the game isthe sum score over the four comparisons. For example, if Helen puts 5 and 1 chips in herP1 and P2, David puts 3 and 1 chips in his P1 and P2, respectively. Then Helen will get5 (5 vs 3) + 5 (5 vs 1) - 5 (1 vs 3) + 0 (1 vs 1) = 5 as her nal score, and David will gethis nal score of -5.(a) Give reasons why/how this game can be described as a two-players-zero-sum game.(b) Formulate the payoff matrix for the game.
Click here to see answer by CPhill(2189)

Question 735259: Find the slope of the line that passes through the points (-3, 4) and (4, 1)
Click here to see answer by ikleyn(53611)

Question 744578: could someone please show me how to graph this x2+y2+2x-10y+1=0
Click here to see answer by ikleyn(53611)

Question 1210454: Draw the graph of y = 3x(4- x ) for value of x ranging from-2 to 6 on the same
axes draw the line y=5(x-2) use a scale of 1 cm to 1 unit on the x axis and 1cm
to 5 unit on the y axis.From your graph find the roots of the equation
y=3x(4-x), write down the maximum value of y=3x(4-x) and deduce the root of the equation.
Click here to see answer by Edwin McCravy(20077)

Question 741771: For the following system, if you isolated x in the first equation to use the Substitution Method, what expression would you substitute into the second equation?
−x + 2y = 9
4x + 5y = 9
Click here to see answer by MathTherapy(10719)

Question 744603: How to draw a graph of 3y = 4/3-5y

Click here to see answer by ikleyn(53611)

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