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

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Question 260603: i need help on this problem it says in each case determine whether the lines are parallel, perpendicular or neither the problem is
y= x+7
y=-x+2
can you show me how you gt this answer??? thanks!
Click here to see answer by Alan3354(30983)

Question 260602: find the slope of a line perpendicular to the given line and that passes through the given point
y = -3x
y = -8
Click here to see answer by Alan3354(30983)

Question 260590: i don't understand this problem. it says y+4x=8 can you show and explain how you got the answer??? thank you if you can!
Click here to see answer by Alan3354(30983)

Question 260583: okay i really need your help on this problem it says draw L(1) through (-4,0) and (0,6). What is the slope of any line parallel to L(1)? Draw through the orgin and parallel to L(1) can you please show me the answer and also how you got the answer by showing your work??? thanks so much if you can!
Click here to see answer by richwmiller(9135)

Question 260610: Your favorite aunt put money in a savings account for you. The account earns simple interest; that is, it increases by a fixed amount each year. After 2 years your account has $8250 in it and after 5 years it has $9375. Let x represent number of years and y amount of money in your account.
A. Construct a linear equation to model the amount of money in your account after X years.
I got y=375x + 8248 not sure if it's correct
B. How much did your aunt put in initially? I got $8,248

C. How much will your account have after 10 years? I got $11,998
Click here to see answer by richwmiller(9135)

Question 260634: X+0.06x=742

stressed...!!!! I dont get decimal equations
Click here to see answer by onlinetutor365.com(14)

Question 260628: find an equation that passes through the point (0,8) and is parallel to to the line
Click here to see answer by nerdybill(6951)

Question 260690: find the slope of the line that passes through these points (-1,-1) and (0,0)
Click here to see answer by PRMath(123)

Question 260690: find the slope of the line that passes through these points (-1,-1) and (0,0)
Click here to see answer by Fombitz(13828)

Question 227439: state the equation ( in-slope form) of the line that has a slope of -2 over 3 and the y intercept of (0,4)
Click here to see answer by dustin32628(1)

Question 260757: Perpendicular Lines: Write the equation of the line through (4,5) and perpendicular to the line with equation 3x + 2y = -1.
Please explain how the equation came out to y = 2/3 x + 7 as shown in my example answer key.
Thank you,
Melissa
Click here to see answer by jim_thompson5910(28504)

Question 260731: I really don't understand this problem at all please help!!!!!!!!!!!!!
You are given this following data
x y
2 1
3 10
4 6
5 19
5 1
7 1
7 4
Find
ss(x)
ss(y)
ss(xy)
The linear correlation coefficient, rthe slope b1
the y-intercept, b2
the equation of the line of best fit.
please help thank you in advance
Click here to see answer by drk(1908)

Question 260786: find the intercepts for the equation
x=4
Click here to see answer by drk(1908)

Question 260793: My problem: The demand (d), for DVD players sold in 1 monthe is a linear function of price (p), for $150 <= p <= $400. If the price is $200, then 50 DVD players will be sold each month, if the price is $300, only 30 will be sold. a) using order pairs of the form, (p,d), write an equation for the demand(d) as a function of price,(p). I did this as 300-200/30-50, and ended up with -5. I wrote my equation as d(p)= -5p + 200, which is wrong. The book has the equation as d(p)= -0.20p + 90 and I have no idea how they got that equation. Thanks for your help..
Click here to see answer by jim_thompson5910(28504)

Question 260822: -7/8= -5/6z. Please help.
Click here to see answer by Fombitz(13828)

Question 260787: find the slope and the y-intercept of the line
-10x+2y=14
Click here to see answer by Fombitz(13828)

Question 260830: You are given the following frequency distribution for the number of errors that students made in a test

Error Frequency
______________________

0-2 14

3-5 1

6-8 9
9-11 19

12-14 17

Find the mean, variance, and standard deviation. I been working on this problem for 2 days please help!!!!!!!!!! thank you so much

Click here to see answer by stanbon(57250)

Question 260917: Write an equation in slope-intercept for for the two ordered pairs. (3,-4) and (6,1)
Click here to see answer by Alan3354(30983)

Question 260917: Write an equation in slope-intercept for for the two ordered pairs. (3,-4) and (6,1)
Click here to see answer by checkley77(12569)

Question 260785: find the intercepts for the equation.
x-4
Click here to see answer by richwmiller(9135)

Question 260975: What is the slope of a line with the equation 4x + 12y = 6?
Click here to see answer by rfer(12647)

Question 260975: What is the slope of a line with the equation 4x + 12y = 6?
Click here to see answer by solver91311(16870)

Question 261012: find the ordered pair
-2 x +5 y=-30
a) (-10,_)
b) (_,-3)
c) (_,8)
Click here to see answer by richwmiller(9135)

Question 261021: How much pure water must be mixed with 2 liters of a 40% solution of antifreeze to get a 25% antifreeze solution?
Click here to see answer by richwmiller(9135)

Question 260970: find the missing coordinate to complete the ordered pair solution to the given linear equation
-2 +5y=-30
a) (10,_)
b) (_,-3)
c) (_,8)
Click here to see answer by checkley77(12569)

Question 260968: what is slope form of 7x-3y+4
Click here to see answer by checkley77(12569)

Question 261057: How do you change y+4=-3/4(x-1) to standard form?
Click here to see answer by rfer(12647)

Question 261057: How do you change y+4=-3/4(x-1) to standard form?
Click here to see answer by solver91311(16870)

Question 261139: How to write y-x=5 in slope intercept form
Click here to see answer by solver91311(16870)

Question 261139: How to write y-x=5 in slope intercept form
Click here to see answer by richwmiller(9135)

Question 261239: Graph the linear equation y = 2/3x - 2?
Click here to see answer by richwmiller(9135)

Question 261294: Use left to right elimination method to solve the system
x-3y-z=0
x-2y+z=8
2x-6y+z=6

Click here to see answer by CharlesG2(828)

Question 261298: f(x)= 4x-6 f(2); f(-1) solving this
Click here to see answer by CharlesG2(828)

Question 261307: (x) = 4b^2 - 6x + 13b
x = -2 x = 4 Help with this please
Click here to see answer by Alan3354(30983)

Question 261329: (7,8);3x + y = 2
The equation of the line is Y= ?
Click here to see answer by Alan3354(30983)

Question 261395: I need to put 2x=y-7 into the form to where it can be graphed.
y=mx+b
Click here to see answer by drk(1908)

Question 261448: what equation has the same slope as the equation y=10/5x+4?
y=5x+4
y=2x-3 or y=8/4x+1
Click here to see answer by drk(1908)

Question 261462: what is the slope of the linear function?
Click here to see answer by richwmiller(9135)

Question 261464: write two different equations that has the same slope as y=60/10x+9
Click here to see answer by richwmiller(9135)

Question 261464: write two different equations that has the same slope as y=60/10x+9
Click here to see answer by checkley77(12569)

Question 261466: what are two different equations that have the same slope as y=60/10x+9?
Click here to see answer by palanisamy(496)

Question 261470: what is the y-intercept?
Click here to see answer by palanisamy(496)

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