Questions on Algebra: Graphs, graphing equations and inequalities answered by real tutors!

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Question 66648: I am really lost on this question on how to go about this correctly:
50. 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 more item).
(a) If the fixed cost is $40 and the variable cost is $10, write the cost equation.
(b) Graph the cost equation.

Click here to see answer by Earlsdon(6294)

Question 66721: graph y=-x-2
Click here to see answer by stanbon(75887)

Question 66720: Complete the ordered pairs for the equation y=5x+15. ( ,0) (1/5, ) (0, ) (-1/5, )
Click here to see answer by Earlsdon(6294)

Question 66720: Complete the ordered pairs for the equation y=5x+15. ( ,0) (1/5, ) (0, ) (-1/5, )
Click here to see answer by sprolden(40)

Question 66683: 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 more item).
(a) If the fixed cost is $40 and the variable cost is $10, write the cost equation.
(b) Graph the cost equation.

Click here to see answer by stanbon(75887)

Question 64435: graph the linear parent function y=x, and then graph the line whose y intercept is translated up 3
Click here to see answer by rapaljer(4671)

Question 64480: looking for more help please, Thank you...
Given f(x) = x^2 � 8x - 20 equation (parabola), find the following:
21.) The vertex
22.) The y-intercept(s)

Click here to see answer by rapaljer(4671)

Question 66692: Plot the point with coordinates (-4,3)
Click here to see answer by stanbon(75887)

Question 66219: Directions: graph the solution set of each of the following inequalities.
3x >= 2x -4
Click here to see answer by rapaljer(4671)

Question 66645: 2x + 3y = 6
Click here to see answer by rapaljer(4671)

Question 66665: Please help
Complete the square as an aid in graphing
y = x^2 + 2x - 1
Click here to see answer by venugopalramana(3286)

Question 66660: PLease help to graph
y < 2
5x + 3y > or equal to 12
Click here to see answer by ankor@dixie-net.com(22740)

Question 66778: please help me solve these equations.
On a graph f(x) = -x^ + 3x - 2
using the graph what are the values of x for which f(x) > 0
using the graphs of f(x) = -x^ + 3x - 2 and g(x) = -3 find the roots of theequation -x^ + 3x +1 = 0
Click here to see answer by Nate(3500)

Question 66903: Graph each of the following inequalities: 4x + y greater than or equal to 4.
I am having trouble with this one. Could someone show me how to do this and graph this. Thanks for any help.
Click here to see answer by ankor@dixie-net.com(22740)

Question 66904: Graph the following inequalities: 3x - 4y < 12.
Any help with solving and graphing this equation would be greatly appreciated. Thanks.
Click here to see answer by ankor@dixie-net.com(22740)

Question 66920: Determine the slope of a line that goes through the points (1,3) and (-2,5)
Click here to see answer by checkley71(8403)

Question 66919: graph a line that goes through the point (4,4) and has a slope of -1/2
Click here to see answer by checkley71(8403)

Question 66918: m=2;(3,2)
Click here to see answer by checkley71(8403)

Question 66927: I am trying to put the points (-7,2) and (-1,7) in general form.
Click here to see answer by checkley71(8403)

Question 66970: Ok I was helping my little brother graph stuff and he came to me with the problem x=4y-6 and i need it to be in mx+b=y format. I some how got (1/-4)x+1.5=y. please help me. Was my answer right? If it is can you help explain how I got it because I really don't know.
Click here to see answer by Earlsdon(6294)

Question 66956: solve each open sentence. graphthe solution set, if there is one.
20)-8 is less than or equal to -2x is less than or equal to 6
Click here to see answer by stanbon(75887)

Question 67004: Can you please help me solve the following? Thanks so much!
x -2 -1 0 1 2

y .111 .333 1 3 9
Given the table above, graph the function, identify the graph of the function (line, parabola, hyperbola, or exponential), explain your choice, and give the domain and range as shown in the graph, and also the domain and range of the entire function.
Graph:
Graph Type:
Explanation:
Domain:
Range:

Click here to see answer by stanbon(75887)

Question 67051: graph f(x) = -2x-5
Click here to see answer by stanbon(75887)

Question 67056: if f(x)=5x-1, find f(a-2)
Click here to see answer by stanbon(75887)

Question 67055: if f(x)=4x-3, find f(-1)
Click here to see answer by Nate(3500)

Question 67046: graph 3x-4y<12
Click here to see answer by Zoop(21)

Question 67120: I have to do a production possibilities table for consumer goods (automobiles) and capital goods (forlifts):
Production Alternatives
Type of Production A B C D E
Automobiles 0 2 4 6 8
Forklifts 30 27 21 12 0
Show these data graphically. Upon what specific assumptions is the production possibilites curve based?
Please help me do the graph. Thanks

Click here to see answer by ronniecroberts(6)

Question 67063: is 3y+2=0 a standard linear equation? if its not, why?
Click here to see answer by ronniecroberts(6)

Question 67115: 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 Petredish1(5)

Question 67123: You have at least $30 in change in your drawer, consisting of
dimes and quarters. Write an inequality that shows the different number of coins in your drawer.
Click here to see answer by venugopalramana(3286)

Question 67122: graph the equation 4x+y>_4 (4x+y is greater than or equal to 4)
Click here to see answer by ankor@dixie-net.com(22740)

Question 67181: The gradient of a road is its slope expressed as a percent. What is the slope of a road with a 7% gradient?
Click here to see answer by josmiceli(19441)

Question 67206: When you are plotting a point does the x or y come first?
Click here to see answer by bam878s(77)

Question 67206: When you are plotting a point does the x or y come first?
Click here to see answer by funmath(2933)

Question 67193: I don't get it at all, I don't understand how they work...Can you help me understand them better??
Click here to see answer by ptaylor(2198)

Question 67207: y=3x+6
Click here to see answer by cassiroberts(11)

Question 67324: how do i find an equation relating the two variables

Click here to see answer by stanbon(75887)

Question 67313: 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 more item).
(a) If the fixed cost is $40 and the variable cost is $10, write the cost equation.
(b) Graph the cost equation.
I know A and B I need help with c and d
c) The revenue generated from the sale of x items is given by R=50x. Graph the
revenue equation on the same set of axes as the cost equation.
(d) How many items must be produced for the revenue to equal the cost (the
break-even point)?
Click here to see answer by stanbon(75887)

Question 67308: Complete the square as an aid to graphing
y = -x^2 + 8x - 12
Click here to see answer by venugopalramana(3286)

Question 66316: A ratio of two like quantites with different units can be used as a conversion factor. Use the fact that 1 mile=1.6 kilometers to convert the following quantites.
A) 50miles to kilometers. 50*1.06=53kilometers?
B) 90km/hr to mi/hr. 90km divided by 1.6= 56.25mi/hr?
C) How many m/s is 90km/hr. 56.25 divided by 60mins=.9375?
.9375 divided by 60sec= .015625?
Click here to see answer by 303795(602)

Question 67343: Hi, can someone please help me solve the following by graphing? Thanks in advance!

1. 3x - 5y = -9
5x - 6y = -8

2. 4x + 5y = -2
4y - x = 11

Click here to see answer by Edwin McCravy(20054)

Question 67464: heres our problem (1,y),(2,4),m=1 the directions say find the value of y so that the line passing throuhg the two points has the given slope
Click here to see answer by ankor@dixie-net.com(22740)

Question 67512: Determine which two equations represent parallel lines.(a) y = x + 4 (b) y = x � 7 (c) y = 2x + 8 (d) y = 2x � 4
Click here to see answer by bam878s(77)

Question 67426: x+y+5 x-y=1 solve and show graph
Click here to see answer by aaaaaaaa(138)

Question 67563: draw gragh
x-4y=0
Click here to see answer by checkley71(8403)

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