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

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Question 119985: I need help solving a problem that says, write an equation of the line that is

perpendicular to the line 5y + 2x = 13 and
passes through the (6, 2). Write the answer in slope-intercept form or standard form.

Click here to see answer by checkley71(8403)

Question 120009: Find an Equation for the least square line of the data below. Use the equation to predict the x-value that corresponds to a y -value of 7
X:8 4 1 5 4 4 9 8 5 2 7 1 6 3 2 4
Y:7 6 2 5 6 4 8 8 6 3 8 3 6 4 1 3
I have graphed the line but i dont know how i am supose to get the equation for the line
Click here to see answer by stanbon(57327)

Question 120046: what is down stream and upstream
Click here to see answer by bucky(2189)

Question 119921: Transportation An electronics company produces three models of stereo speakers, models A, B, and C, and can deliver them by truck, van, or station wagon. A truck holds 2 boxes of model A, 2 of model B, and 3 of model C. A van holds 3 boxes of model A, 4 boxes of model B, and 2 boxes of model C. A station wagon holds 3 boxes of model A, 5 boxes of model B, and 1 box of model C.
a. If 25 boxes of model A, 33 boxes of model B, and 22 boxes of model C are to be delivered, how many vehicles of each type should be used so that all operate at fullcapacity?
b. Model C has been discontinued. If 25 boxes of model A and 33 boxes of model B are to be delivered, how many vehicles of each type should be used so that all operate at
full capacity?

Click here to see answer by ankor@dixie-net.com(15649)

Question 120115: Which of the ordered pairs
(0, 2), (4, 0), (0, –2), (–8, 6)
are solutions for the equation x + 2y = 4?

Click here to see answer by josmiceli(9671)

Question 120115: Which of the ordered pairs
(0, 2), (4, 0), (0, –2), (–8, 6)
are solutions for the equation x + 2y = 4?

Click here to see answer by stanbon(57327)

Question 120162: Find the slope of the line through the given points. (8,4), (6,5).
Click here to see answer by jim_thompson5910(28593)

Question 120168: Find X (2,4),(X,8); slope = -1/2
Click here to see answer by tlr81662(1)

Question 120173: Find the slope of each line. If the line has no slope, say so.
y = 3x-2
Click here to see answer by MathLover1(6627)

Question 120178: Find the slope of the lines through the given points and explain. Show all work.
(0,7), (2,3)
Click here to see answer by jim_thompson5910(28593)

Question 120186: I'm having a problem with a homework y-intercept question that has me stumped. The equation is 3x - 2y + 8 = 0. Please help.
Thank you so much for your help.
Click here to see answer by jim_thompson5910(28593)

Question 120180: Find the slope of each line. If the line has no slope, say so. Explain your answer and show all work.
y = 12-4x and x-3y = 9
Click here to see answer by checkley71(8403)

Question 120199: I don't understand the three problems below in relation to graphing them. Thanks for your help! :)
Solve by graphing.
Problem 1 (#12 in text)
y = 1/2x + 2
y = -x + 5
Problem 2 (#6 in text)
y = x
y = 5x
Problem 3 (#7 in text)
y = 1
y = x

Click here to see answer by checkley71(8403)

Question 120204: Suppose you have$20 in your acct. you save $5 aweek.
your friend has $5in the his acct. he saves $10 aweek.
after how many weeks will it takes for you and your friend to have the
same amount of money in your acct?
How will each of you have?
Click here to see answer by checkley71(8403)

Question 120158: an object is dropped from an initial height of s feet. the object's height at any time, t in seconds, is given by h=-16t(squared)+s. How long does it take for an object dropped from 300 feet to hit the ground?
Click here to see answer by solver91311(16877)

Question 120206: Write the standard form of the line that passes through (5,-3) and has a slope perpendicular to 2x+7y=16.
Click here to see answer by solver91311(16877)

Question 120240: what is 3x-2+4/x -[6]=2 waht is the value of y
Click here to see answer by checkley71(8403)

Question 120266: solve one using addition and one using substitution.
State which method your are using for which system
a. 4x-3y=10 and y -20=-6x
b. y= 3x + 6 and =6x + 2y = 12
Thanks
Click here to see answer by MathLover1(6627)

Question 120303: Is the relationship shown by the following data, linear? -10,-7
0,-3
5,-1
20,5
How do I figure out if it is or isn't. I know that the rate of change is different, but I'm lost from there. How would I model the data in an equation?
Click here to see answer by scott8148(6628)

Question 120269: How do you find an equation for a line that has an unidentified slope?
Click here to see answer by solver91311(16877)

Question 120401: Solve for X and Y in the following problems.
a. X + Y=6 ; 2X + Y = 8

Click here to see answer by jim_thompson5910(28593)

Question 120424: Please help...
Write the equation of line passing through each of the given pairs of points. Write your result in slope-intercept form.
1) (0,5),M= -3/5
2) (-1,3) and (4, -2)
3) (2,-3) and (2,4)
Find the slope of any line perpendicular to the line through points (0,5) and (-3,-4).

Thank you for your help on this...
Click here to see answer by jim_thompson5910(28593)

Question 120415: Algebra: finding temperature Celsius
104F = ? Celsius
Click here to see answer by bucky(2189)

Question 120536: Complete the ordered pairs fot the equation y=5x+10.
( ,0) (1/5, ) (0, ) (-1/5, )
Click here to see answer by MathLover1(6627)

Question 120572: write the equation of the line passing through each of thhe given pairs of points. write your results in slop-intercept form, where possible.
1. (-1,3) and (4,-2)
Click here to see answer by jim_thompson5910(28593)

Question 120573: write the equation of the line passing through each of thhe given pairs of points. write your results in slop-intercept form, where possible.
2. (2,-3) and (2,4)
Click here to see answer by jim_thompson5910(28593)

Question 120575: 1.find the slope and intercept of -4x+5y=25.
2.Find the slope of any line parallel to the line through points (12,5) and (10,4).
Click here to see answer by jim_thompson5910(28593)

Question 120574: 1.find the slope and intercept of -4x+5y=25.
2.Find the slope of any line parallel to the line through points (12,5) and (10,4).
Click here to see answer by Vannie(2)

Question 120554: If y varies directly with x and y = 36 when x = 6, find the constant of variation k.
Click here to see answer by nabla(475)

Question 120587: find the slope of any line perpendicular to the line through points (0,5) and
(-3,-4)
Click here to see answer by solver91311(16877)

Question 120591: Write the equation of the line L satisfying the given geometric conditions
L has y-intercept (0,2) and is perpendicular to the line with equation 2x-3y=6.
Click here to see answer by checkley71(8403)

Question 120638: 1. Technology. Driving down a mountain, Tom finds that he has descended 1800 ft
in elevation by the time he is 3.25 mi horizontally away from the top of the
mountain. Find the slope of his descent to the nearest hundredth.

Click here to see answer by jim_thompson5910(28593)

Question 120641: 2. Find the slope of any line perpendicular to the line through points (0, 5) and
(3 , 4).

Click here to see answer by jim_thompson5910(28593)

Question 120644: 3. Geometry. Floor plans for a building have the four corners of a room located at the
points (2, 3), (11, 6), (-3, 18), and (8, 21). Determine whether the side through the
points (2, 3) and (11, 6) is parallel to the side through the points (-3, 18) and (8, 21).

Click here to see answer by jim_thompson5910(28593)

Question 120647: 4. L has y-intercept (0, -3) and is parallel to line with equation y=2/3x+1
Click here to see answer by jim_thompson5910(28593)

Question 120649: 5. L has y-intercept (0,2) and is perpendicular to the line with equation 2x – 3y = 6
Click here to see answer by jim_thompson5910(28593)

Question 120653: Business and finance. In planning for a new item, a manufacturer assumes that
the number of items produced x and the cost in dollars C of producing these items
are related by a linear equation. Projections are that 100 items will cost $10,000 to
produce and that 300 items will cost $22,000 to produce. Find the equation that
relates C and x.
Click here to see answer by jim_thompson5910(28593)

Question 120668: Determine which two equations represent perpendicular lines.
y=4/9x-5
y =5x-4/9
y= -1/5x +4/9
Y=1/5x-4/9
Click here to see answer by rapaljer(4667)

Question 120666: please help me solve this problem

use the substitution method to solve the linear system
here is the promblem

Y=x-4
3x-y=-8
what do you do frist
Click here to see answer by jim_thompson5910(28593)

Question 120673: Solve the following system by addition. If a unique solution does not exist, state whether the system is inconsistent or dependent:
x+5y=10
-2x-10y=-20
Click here to see answer by jim_thompson5910(28593)

Question 120650: Solve the following system by addition. If a unique solution does not exist, state whether the system is inconsistent or dependent:
2x+3y=1
5x+3y=16
Click here to see answer by jim_thompson5910(28593)

Question 120679: Solve the following system by substitution
8x-4y=16
y=2x-4
Click here to see answer by rapaljer(4667)

Question 120678: Solve the following systems by substitution
5x-2y=-5
y-5x=3

Click here to see answer by B-Rod33(7)

Question 120683: Solve the following systems by using either addition or substitution. If a unique solution does not exist, state whether the system is dependent or inconsistent.
10x+2y=7
y=-5x+3
Click here to see answer by rapaljer(4667)

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