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

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Algebra: Linear Equations, Graphs, Slope

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Question 44494: I need to find the line passing through (1,42) and (17,314).
Click here to see answer by venugopalramana(3286)

Question 44501: A business discovers a linear relationship between the number of shirts it can sell and the price per shirt. In particular, 20,000 shirts can be sold at $19 each and 2000 of the same shirts can be sold at $55 each. Write the slope-intercept equation of the demand line through the ordered pairs (20,000 shirts, $19) and (2000 shirts, $55). Then determine the number of shirts that can be sold at $50 each.
Click here to see answer by stanbon(26290)

Question 44628: Hello, I have a few equations that I can not solve. Can someon PLEASE help.
Thank you!

1. 4x-12
-----------
6x^2-18x

2. 6x^2+17x+5
---------------
3x^2+13X+4

3. Y^2 TIMES 4Y
---------------------
12Y TIMES Y-7

4. X^2 TIMES X^2-5X+6
----------------------
X^2-4 TIMES 3X-X^2

Click here to see answer by tutorcecilia(2042)

Question 44583: Complete the ordered pairs so that each is a solution for the given equation.
3x+4y=12 (0, ), ( ,3/4), ( ,0), (5/3, )
Click here to see answer by pvaka(23)

Question 44641: plot x^2+4.y^2-4.x-8.y+4=0
Click here to see answer by adamchapman(301)

Question 44672: Business and Finance. When x number of units are sold, the price of each unit (in dollars) is given by p= -x/2+75. Find the unit price when the following quantities are sold: 2,7,9,11

-x/2 is a fraction.
Please help me.
Click here to see answer by tutorcecilia(2042)

Question 44693: Business and Finance. The cost of producing a number of items x is given by C= mx + b, in which b is the fixed cost and m is the variable cost (the cost of producing one or more item).
(a) If the fixed cost is $40.00 and the variable cost is $10, write the cost equation.
(b) Graph the cost equation.
Click here to see answer by fractalier(1804)

Question 44697: Find the constant of variation k
m varies directly with n; m=144 when n=8.

Click here to see answer by stanbon(26290)

Question 44749: Im not sure what topic it would fall under. But here is my questions
the variable x is 4 less than the variable y?
answer I think it is, x - 4 = y
next question
if the variable t is multiplied by 5, the result is equal to the variable r.
answer I think it is, t * 5 = r
next question
if 3 is subtracted from the product of the variables x and y the result is equal to 4 time the variable z
this one I really couldn't understand
next question
the quotient of the variable x with the variable y is 2 more than o.7 of the variable z.
this is another one I don't understand.
If there is a way to explain the answer to me and how you get the answer I would appreciate it.
Click here to see answer by venugopalramana(3286)

Question 44774: my question is a can't seems to find the answer to this problem
0.5(2.6x-4)+ 2.3(1.4x-5)
Click here to see answer by adamchapman(301)

Question 44774: my question is a can't seems to find the answer to this problem
0.5(2.6x-4)+ 2.3(1.4x-5)
Click here to see answer by OHtutor(16)

Question 44790This question is from textbook functions and change
: Find the equation of the line that is parallel to 3x+2y=4 and has the same horizontal intercept as 2x-y=8.
I can't get past solving each equation to y = -3/2x+2 and y= 2x-8. the parallel part is throwing me.
Thank you in advance for your help.
T TaylorThis question is from textbook functions and change

Click here to see answer by stanbon(26290)

Question 44798: I could use a little help on this question. I'm not good and this.
The quotient of the variable x with the variable y is 2 more than 0.7 of the variable z.
Click here to see answer by stanbon(26290)

Question 44801: Can you please explain to me about what is a one solution, and no solution infinitive solution mean in a simple way? I am more of visual in number than word explanation. How do you know what they are when you solve the equation? Do you sitll have to process the equation with y=mx+b when you have equation x+2y=10 and 4y-20=2x
How do you solve by graphing? and what is the solution?
Your help is greatly appericated.
Click here to see answer by stanbon(26290)

Question 44824: y= 1/2 x-3. the slope is?
Click here to see answer by stanbon(26290)

Question 44846This question is from textbook INTERMEDIATE ALGEBRA

: Solve the equation by using factoring.
8x^3 - 32 x = 0
This question is from textbook INTERMEDIATE ALGEBRA

Click here to see answer by stanbon(26290)

Question 44847This question is from textbook INTERMEDIATE ALGEBRA

: Use factoring to solve the equation.
6 x 2 + 42 x = 0

This question is from textbook INTERMEDIATE ALGEBRA