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

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Question 141859: The points (1,5), (4,5), and (1,0) represent three corners of a rectangle; find the coordinates of the fourth point.
Click here to see answer by scott8148(6628)

Question 141986: I have to solve & define these problems and determine if it's independence or independent, consistent or inconsistent then graph them but I don't know how.
4x+2y=4
16x+8y=16
y= -3x
y= -2x+1
thank you
Click here to see answer by jim_thompson5910(35256)

Question 142108: a box of apples weighs 42 pounds, plus or minus 1/2 pound. write an absolute value inequality expressing this fact. let w equal the weight of a box of apples.
Click here to see answer by stanbon(75887)

Question 142102: IS THERE ANYONE WHO CAN HELP ME WITH THIS????

acme cycle shop stocks two models of bicycles.one model costs the shop $100, and the other model costs $200. the profit on the $100 model $50. the profit on the $200 model is $75.
a) if the number of $100 bikes is x, and the number of $200 bikes is y, write an inequaltiy that states that the display space has room for no more than 20 bikes.
b)write an inequality that states that the store cannot pay more than $3200 for their stocks of bikes.
c)write inequalities that state that the store cannot sell negative nubers of bikes.
d)if the profit of the $100 bikes is $50, and the profit on the $200 model is $75, write th eprofit function P(x,y)
e) graph the comstraints
f) how many of each should the shop order to make the maximun profit?
Click here to see answer by stanbon(75887)

Question 142095: please help me solve the following equations:
[x-5]=15
3[x]-5=1
[x]+5=15
3[2x-5]-2=7
Click here to see answer by nabla(475)

Question 142145: Can you graph the equation: y= -X^2-4X+5. If you can, please explan how u got the vertex and how to graph everything. Thanks.
Click here to see answer by nabla(475)

Question 142097: please help me solve these inequalities with solutions in interval notation:
[x+5]>=10
[x/2]>=8
[x]+5<=10
[x-5]<10
[2x]>=8
3[x-1]+7>25
Click here to see answer by edjones(8007)

Question 142210: hello my name is bj and i am new to this site and was wondering if someone can help me graph this??

y<2x-3 and 3x-2y<=6

Click here to see answer by jim_thompson5910(35256)

Question 142170: Hi my name is Miana I am a 10th grade student and I am struggling with Algebra I am not grasping the whole concept of Algebra variables and equations.
If you take me step by step on this problem I would greatly appreciate this and show me how you did the problem. Hopefully I can grasp the concept of this my problem is: 3xy+4xy+5x2pwy+6xy2pw
Click here to see answer by checkley77(12844)

Question 142355: Find the area of a rectangle if three of its corners are (-0.1,-3.4), (-7.9,-3.4), and (-0.1,6.8). Any help with this would be appreciated. Thank you in advance.
Click here to see answer by scott8148(6628)

Question 142361: Find the slope of the line that passes throught the points (-3,-6)and (1,6).
Click here to see answer by jim_thompson5910(35256)

Question 142365: find the slope-intercept equation of the line passing through (2,1)with a slope 0f m = 3.
Click here to see answer by jim_thompson5910(35256)

Question 142414: What is the general form of the equation of a line that is parallel to the x-axis?

Click here to see answer by solver91311(24713)

Question 142413: Can a line have more than one x-intercept?

Click here to see answer by solver91311(24713)

Question 142415: Graph the linear equation
1/2x-1/3y= -1

Click here to see answer by checkley77(12844)

Question 142430: Find an equation in slope-intercept form passing through the points (2,5) and
(7,-3). Any help with this equation would be appreciated. Thank you.
Click here to see answer by checkley77(12844)

Question 142377: 7.1x - 3.9y= 1.4

A temperature of 41 degrees F is equivalent to 278.2 degrees K, while a temperature of 86 degrees F is equivalent to 303.2 degrees K. Find the equation converting Kelvin temperature to Fahrenheit. What is the Fahrenheit temperature when it is 180 degrees K?
Click here to see answer by jojo14344(1513)

Question 142498: the point (1,5), (4,5) and (1,0) represent three corners of a rectangle; find the coordinates of the fourth point
Click here to see answer by scott8148(6628)

Question 142540: how do you write the standard form of an equasion of a line that passes through the point (1,1) and has a slope of 1/4?
Click here to see answer by prabhjyot(165)

Question 142561: why it is necessary to reverse the inequality symbol when multiplying both sides of an inequality by a negative number.
Click here to see answer by scott8148(6628)

Question 142561: why it is necessary to reverse the inequality symbol when multiplying both sides of an inequality by a negative number.
Click here to see answer by stanbon(75887)

Question 142562: What is the basic method for graphing a linear equation?
Click here to see answer by stanbon(75887)

Question 142577: We're trying to help our grandson with 8th grade algebra. Could you explain to me what domain means.(as in find domain of the function?) Sincerely, Teresa M.
Click here to see answer by stanbon(75887)

Question 142579: Here is my "domain" problem if it makes any sense:

Find domain of the function y=2sqrt of 4x+10
Teresa M.
Click here to see answer by jim_thompson5910(35256)

Question 142579: Here is my "domain" problem if it makes any sense:

Find domain of the function y=2sqrt of 4x+10
Teresa M.
Click here to see answer by scott8148(6628)

Question 142672: The Middletown Magic Shop sold two magic top hats today. Then someone returned one of them because the rabbit that came out of it bit him in the middle of his act. At the end of the day, there were 15 magic top hats in the shop. How many top hats were in the shop at the beginning of the day?
Click here to see answer by bebedeeb(7)

Question 142683: What is the domain and range of this equation: x^2+y^2=256
Click here to see answer by stanbon(75887)

Question 142716: You are taking a Spanish course in which there will be four tests, each worth 100 points. You have scores 95, 96, and 93 on the first three tests. You must make a total of 360 i order to get an A. What score on the last test will give you an A?
Click here to see answer by oscargut(2103)

Question 142719: Miranda's financial aid stipulates that her tuition not exceed $1,000. If her college charges a $45 registration fee plus $250 per course, what is the greatest number of courses for which Miranda can register?
Click here to see answer by bebedeeb(7)

Question 142717: Most insurance companies will replace a vehicle any time the estimated repair exceeds 80% of its 'blue book' value. Michelle's car had $7,100 in repairs after an accident. Wht can be concluded about its "blue book' value?

Click here to see answer by edjones(8007)

Question 142808: Choose a strategy to solve each problem.

Derek gave Kyle half of his marble collection. Kyle gave Janis half of the marble he received fom Derek. Janis kept 12 of the marbles and gave the remaining 16 to Jill. How many marbles did Derek give to Kyle?
Click here to see answer by ptaylor(2198)

Question 142814: I have this problem I have no idea even where to start. Here it is..
Graph on a rectangular coordinate system:
y > x + 2

Can someone help me please?
Click here to see answer by stanbon(75887)

Question 142807: Solve both inequalites
1.) Fifteen is greater than a number minus 7.
2.) A number plus 11 is less than or equal to 9.

Thanks so much.
Click here to see answer by Fruglemiester1234(13)

Question 142806: Write an inequality for ach situation. Please do all!!!
A.) There ae more than 25 states in the country.

B.) A sign on a tunnel says "Maximum height of vehicles is 15 feet"

C.) Water boils at a temperature of at least 212 degrees F.
D.) Your brother had the most 25 people at his party.

Thanks and please do all!!!!!!!!!!!!!
Click here to see answer by Fruglemiester1234(13)

Question 142793: Explain in your own words the basic method for graphing a linear equation. Provide an example of a linear equation and show how you would graph your equation
Click here to see answer by Fruglemiester1234(13)

Question 142920: I have tried and tried and am just plain lost on this problem maybe you can explain to me how it works...My own teacher can not.
Find the x intercepts for the graph of the equation y=x^2+3x-10 I have to find the s intercepts? Can you help
Click here to see answer by jim_thompson5910(35256)

Question 142937: Robert is on a diet and can have 500 calories for lunch. A 3-ounce hamburger on whole wheat bread has 315 calories, and 12 fluid ounces of soda has 145 calories. How many French fries can he eat if there are 10 calories in one French fry?

Click here to see answer by stanbon(75887)

Question 142936: The sum of three consecutive even numbers is 150. Find the numbers
Click here to see answer by stanbon(75887)

Question 142935: Solve by the Graphing method:
x-y=3
x+y=5

Click here to see answer by stanbon(75887)

Question 142939: graph this equation:
y=-3x+5
Click here to see answer by pcsp_kumat(6)

Question 142976: 1. Solve by completing the square. Find exact solutions. Then:
a. Find the vertex.
b. Find the line of symmetry.
c. Determine whether there is a maximum or minimum value and find that value.
d. Show a sketch of the graph.

Click here to see answer by jim_thompson5910(35256)

Question 142978: For the following, solve. Find exact solutions

Click here to see answer by jim_thompson5910(35256)

Question 142982: For the following, solve. Find exact solutions

Click here to see answer by jim_thompson5910(35256)

Question 142983: For the following, solve. Find exact solutions

Click here to see answer by jim_thompson5910(35256)

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