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Question 74202: Business and Finance. If the inventor in exercise 53 charges $4 per unit, then her profit for producing and selling x units is given by the function
P(x) = 2.25x-7000
(b) What is her profit if she sells 5000 units?
This is exercise 53 below:
Business and Finance. If the inventor of a new product believes that the cost of producing the product is given by the function
C(x)= 1.75 + 7000
How much does it cost to produce 2000 units of her invention?
$10,500

Click here to see answer by Poohbear272(22)

Question 74158: 5 (2x - 1 ) < -8
Click here to see answer by checkley75(3666)

Question 74299: Hi,
What are the coordinates of the y-intercept of the graph of y=2/3x-6?
I know that the y=-6, and x=0 but why does it equal zero. Also if the equation looked like y= -6x+2/3? would the answer be (0,-2/3)?
thanks in advance
Click here to see answer by jim_thompson5910(35256)

Question 74472: 2y-6x-14=-4
Click here to see answer by rmromero(383)

Question 74473: 2y-6x-14=-4
Click here to see answer by rmromero(383)

Question 74532: Please help.
Graph using the intercept method: x + 3y = 6.
Click here to see answer by funmath(2933)

Question 74530: Please help.
Find the slope and the y-intercept.
y = �8x � 4

Click here to see answer by funmath(2933)

Question 74528: Please help. Graph 3x + 2y = 6.
Click here to see answer by checkley75(3666)

Question 74527: Please help. I am not good with fractions and adding this other stuff makes it even harder.
Complete the ordered pairs for the equation y = 2x + 4.

( ,0), (1/2, ), (0, ), (-1/2, )
Click here to see answer by checkley75(3666)

Question 74536: Find the slope of the line passing through the points (8, �9) and (4, 2).
A) 4/11
B) -4/11
C) 11/4
D) -11/4

Click here to see answer by checkley75(3666)

Question 74480: solve y=1/3x + 2 ? how would you graph this?
Click here to see answer by checkley75(3666)

Question 74585: Please help me understand this
If points A,B, and C lie on a coordinate line and points A and B have coordinates 15 and 7 respectively, then which of the possible coodinates for point C satisfy(ies) d(A,C) < d(B,C)
Thanks to anyone who takes the time to teach me this
Click here to see answer by stanbon(75887)

Question 74512: I am having a hard time with this question, Please help me understand how to get the answer, I am not even sure where to start with this one.
Suppose that you are a hospital dietician. A patient must have at least 165 milligrams and no more than 330 milligrams of cholesterol per day from a diet of eggs and meat. Each egg provides 165 milligrams of cholesterol and each ounce of meat provides 110 milligrams of cholesterol.

Graph the system of inequalities in the first quadrant (explain why). Identify at least two ordered pairs that are part of the solution set. Describe what each ordered pair means in terms of the variables for this problem.
Click here to see answer by josmiceli(19441)

Question 74643: x+y=6
x-y=2
I'm trying to figure out how to solve this for graphing. I know the graphing part, Just not sure on how to solve the problem. Thanks!
Click here to see answer by stanbon(75887)

Question 74641: Graph the following:
y = x + 2
Click here to see answer by checkley75(3666)

Question 74638: Graph the following:
y = �x � 2
Click here to see answer by checkley75(3666)

Question 74634: Determine which two equations represent perpendicular lines.
A) y = 8x-1
B) y = 1/8x+1
C) y = -1/8x+1
D) y = 1/8x-1

Click here to see answer by checkley75(3666)

Question 74633: This is my problem if I make one mistake all my choices are so similar. Please help.
Rewrite the equation 4x � 10y = 11 as a function of x.
A)y = -2/5x +11
B)y = 2/5x -11
C)y = 2/5x -11/10
D)y = -2/5x + 11/10

Click here to see answer by checkley75(3666)

Question 74632: Given f(x) = 5x + 5, find f(�4).
Click here to see answer by checkley75(3666)

Question 74639: Graph the following:
y = x � 2
Click here to see answer by checkley75(3666)

Question 74640: Graph the following:
y = �x + 2
Click here to see answer by jim_thompson5910(35256)

Question 74635: Plot the point with coordinates (�2, �4).

Click here to see answer by jim_thompson5910(35256)

Question 74619: Write the equation of the line with x-intercept (12, 0) and y-intercept (0, 4).
Click here to see answer by jim_thompson5910(35256)

Question 74718: Solve each of the following systems by graphing.
2x-y=4
2x-y=6

Click here to see answer by Earlsdon(6294)

Question 74722: Solve each of the following systems by graphing.
3x-6y=9
x-2y=3

Click here to see answer by jim_thompson5910(35256)

Question 74722: Solve each of the following systems by graphing.
3x-6y=9
x-2y=3

Click here to see answer by checkley75(3666)

Question 74719: Solve each of the following systems by graphing.
x-2y=8
3x-2y=12

Click here to see answer by jim_thompson5910(35256)

Question 74748: How would I solve for y in this equation? x= 3y + 5
Click here to see answer by jim_thompson5910(35256)

Question 74744: find the slope of the line through the given points, if the slope is ubdefined, please state
(4,1) and (1,4)
(-3,-5) and -1,-2)
(-7,-5) and (5, -6)
Click here to see answer by jim_thompson5910(35256)

Question 74711: Graph the equations:
y = �x + 2
y = x + 2

Click here to see answer by checkley75(3666)

Question 74717: Graph the following inequalities.
4x + y "this symbol > with one line under it" 4

Click here to see answer by bucky(2189)

Question 74602: Find an equation of the circle of radius 4 that is tangent to both branches of the graph y=|x|

Thanks!
Click here to see answer by scott8148(6628)

Question 75011: find the x and y intercepts and graph 2x+3y=4
Click here to see answer by checkley75(3666)

Question 75012: garph f(x)= 3/2x-2 what is domain and range
Click here to see answer by stanbon(75887)

Question 74958: The band is selling bags of cookies as a fundraiser. they will sell chocalate mint cookies for $2.00 a box and oatmeal raisin cookies for $3.00 a box. after 1 day they had sold $135.00 worth of cookies.
i) define your varibles (what are they and what do they represent?)
ii) write an equation in standard form that represents this situation.
iii) write the equation in slope-intercept form.
iv) make a graph that represnts this situation.
v) list two combinations of cookies types that result in
$135.00 worth of cookies.
vi) what are the x- and y- intercepts, and what do they mean?
vii) how would the equation change if they had sold $180.00 worth of cookies instead?
viii) draw the new line on the same graph as the original.
ix) how does the new graph compare to the original?
Click here to see answer by ankor@dixie-net.com(22740)

Question 75161: How do you identify horizontal and vertical asymptotes of graph functions?
Click here to see answer by checkley75(3666)

Question 75239: I need to find the slop of any line perpendicular to the line through points (0,5) and (-3,-4)
Click here to see answer by tutorcecilia(2152)

Question 75249: L has y-intercept (0,-3) and is parallel to the line with equation y=2/3x+1
Click here to see answer by tutorcecilia(2152)

Question 75263: I need to graph this problem:
slope: -3/4;y-intercept: (0,8)
Click here to see answer by Earlsdon(6294)

Question 75170: Solve this system by graphing.
x>2+y
y>1
I got this when it was explained, so I don't know why I don't understand it now.
Click here to see answer by ankor@dixie-net.com(22740)

Question 75295: Graph this equation 3 ways 2x+3y=1
Click here to see answer by rmromero(383)

Question 75403: Find the slope of the line passing through the points (1, 1) and (3, 3).
Click here to see answer by checkley75(3666)

Question 75311: Please help to complete the square and graph :
y = x^2 + 2x - 1
thank you
Click here to see answer by ankor@dixie-net.com(22740)

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