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

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 Algebra: Graphs, graphing equations and inequalities Solvers Lessons Answers archive Quiz In Depth

 Question 25828: The sum of two numbers is 346. The smaller number is 1/3 of the quantity 6 less than the larger number. Find the two numbers. Click here to see answer by Paul(988)

 Question 25905: I am wondering how to solve this problem? y=3/4x +2 please help me or give me some kind of hints as to what to do .thanks ever so much , Anissa Poulin Click here to see answer by smoothflyin(6)

 Question 26002: The problem is y = 1/2x + 1 and "x" is -4. How do we figure out what -y is on the graph? Please help!!!! Thank you. y = 1/2(-4) + 1 Click here to see answer by Earlsdon(6287)

 Question 26001: The problem is y = -x and "y" is 2. How do we figure out what -x is on the graph? Please help!!!! Thank you. 2 = -x Click here to see answer by Linz(9)

 Question 26082: how do i graph y=-4 is it just (0,-4) or is it -4=mx-4? Click here to see answer by stanbon(57261)

 Question 25496: 2x+y=4 I am trying to find the x and y intercept of the equation Click here to see answer by whty89(20)

 Question 26216: I don't understand the wording or what formula I need to plug this problem into. Find the equations of the circles that are tangent to the x axis and have a radius of length five units. In each case, the abscissa of the center is -3.(There is more than one circle that satisfies these conditions) Click here to see answer by venugopalramana(3286)

 Question 26298: You bought 12 2-liter bottles of regular and diet pop for a school dance. The regular pop was on sale for \$1.00 per 2-liter bottle. The diet pop cost \$1.50 per 2-liter bottle. You spent \$15.00. How many of each type of pop did you buy? Click here to see answer by stanbon(57261)

 Question 26319: I want to make sure I am doing this correctly in order to instruct my son. Write the equation of a line through the given point with the given slope. (-3,1); m=3 y = mx + b y = 3x + 1, is this correct? Click here to see answer by longjonsilver(2297)

 Question 26361: How do you complete the square? I need the formula. Click here to see answer by mathrebel(25)

 Question 26370: how would you graph 4x+ 5y = 15 Click here to see answer by elima(1433)

 Question 26138: how would i graph and solve for the equation (x-1)squared + ( y + 1)squared = 25 ? thank you for your help Click here to see answer by stanbon(57261)

 Question 26136: how do u figure out how to graph the problem and how do u find out the x and y axis and solve the problem Click here to see answer by stanbon(57261)

 Question 26550: how do u graph y=2x+5? not sure how 2 begin Click here to see answer by wuwei96815(245)

 Question 26634: I AM TRYING TO HELP MY DAUGHTER SOLVE THE FOLLOWING PROBLEM: x=3y 3y-6=2x Can you help me to explain how to solve this for her? Where do I begin? Thanks, Jan Click here to see answer by Earlsdon(6287)

 Question 26620: This is a word problem I am struggling with: You've been offered a part time job at a local retailer. You are being offered two different pay options: Plan A: \$18 an hour with overtime (above 20 hours/week) paying time and a half. Plan B: \$20 an hour with no over time. I need to determine the algebraic formulas for plan A(x),(x being number of hours worked each week)and plan B(x) for a continuous domain of [0,40]. I have managed to figure out the plots for the graph but can't seem to wrap my head around the actual Algebraic formulas. Click here to see answer by venugopalramana(3286)

 Question 26639: I AM TRYING TO HELP MY DAUGHTER SOLVE THE FOLLOWING PROBLEM: x=3y 3y-6=2x Can you help me to explain how to solve this for her? Where do I begin? Thanks, Jan Click here to see answer by venugopalramana(3286)
 Question 26639: I AM TRYING TO HELP MY DAUGHTER SOLVE THE FOLLOWING PROBLEM: x=3y 3y-6=2x Can you help me to explain how to solve this for her? Where do I begin? Thanks, Jan Click here to see answer by wuwei96815(245)

 Question 26621: I have a question on transformations of graphs. I seem to have a little difficulty in finding the plots for graphs that are 'stretched' or 'shrunk'. For example: f(x)=x^2 is the basic quadratic function g(x)= 2(x-1)^2+3 is the transformed function. Do I solve g(x) by inserting the results from f(x) in for x into g(x) equation or do I solve g(x) by inserting the original x I used to solve f(x)? Also, is it correct to use BEDMAS and solve inside the brackets, then exponents then multiply? Thanks a bunch Click here to see answer by longjonsilver(2297)

 Question 26644: I am helping my son prepare for his algebra exam and have a couple of questions. 1) What is the difference between undefined slope and a slope of 0? 2) What is the range of the function y = -2X(Squared) + x when the domain is {1, 3, 5,}? I believe the answer to the second question is a simple as inserting the domain number for x and coming up with an answer of {-1, -15, and -45} but I am not sure. Click here to see answer by longjonsilver(2297)

 Question 26749: What is the formula to convert from circomference to diameter? Click here to see answer by longjonsilver(2297)

 Question 26754: please help solve the equation and graph on a number line. equation 3x+2=7x-6. this is how i did it. 3x=2-3x=7x-6-3x 2=4x-6 then i added 6 to 2 making 8 on the other side the 6 cancles out leaving 4x 4x divided by 4 leaves x on the other side 8 divided by 4 leaves 4 solution x=4 but when i check it the sides do not equal. thanks Sandra D. Click here to see answer by wuwei96815(245)

 Question 26851: Write the equation of the line with given slope and y-intercept. Then graph each line using the slope and y-intercept. Slope: ; -3/4 y-intercept: (0, 8) Click here to see answer by venugopalramana(3286)

 Question 26850: Write the equation of the line with given slope and y-intercept. Then graph each line using the slope and y-intercept. Slope: -2; y-intercept: (0, 4) and Slope: 5; y-intercept: (0, -2) Click here to see answer by venugopalramana(3286)

 Question 26849: Find the slope and y-intercept of the line represented by each of the following equations. 2x - 3y = 6 Click here to see answer by venugopalramana(3286)

 Question 26818: I am sorry to be taking your time but could you please help me out on this... in my book it wants me to "sketch the graph of this inequality"- 3X-Y is greater than or equal to 5 Thank you for your time. Click here to see answer by elima(1433)

 Question 26861: Write the equation of the line L satisfying the given geometric conditions. L has y-intercept (0, -3) and is parallel to the line with equation y 2/3x + 1. Click here to see answer by bmauger(101)

 Question 26862: Write the equation of the line L satisfying the given geometric conditions. L has y-intercept (0, 2) and is perpendicular to the line with equation 2x - 3y = 6. Click here to see answer by bmauger(101)

 Question 26860: Write the equation of the line passing through each of the given pairs of points. Write your result in slope-intercept form, where possible. (-1, 3) and (4, -2) (2, -3) and (2, 4) Click here to see answer by elima(1433)

 Question 26859: Write the equation of the line passing through each of the given points with the indicated slope. Give your results in slope-intercept form, where possible. (0, 5),m = -2/5 rewrite into standard form Click here to see answer by elima(1433)

 Question 26912: Hey, someone please help. I am having to graph and plot online, but can't figure out how to show it. I figured out my answer on paper, but am clueless about getting it onto the computer. Any advice? Thanks a million! Click here to see answer by elima(1433)

 Question 26895: for each equation, find the slope, the y-intercept, and the x-intercept (y=3x) (y=10x+20) (y=10x+100) Click here to see answer by elima(1433)

 Question 26996: In most businesses, increasing prices of their product can have a negative effect on the number of customers of the business. A bus company in a small town has an average number of riders of 800 per day. The bus company charges \$2.25 for a ride. They conducted a survey of their customers and found that they will lose approximately 40 customers per day for each \$.25 increase in fare. Given the descriptions above, identify the graph of the function (line, parabola, hyperbola, or exponential), explain your choice, and give the domain and range of the function. Click here to see answer by Paul(988)

 Question 27030: Here's the question-determine whether the equation represents a function, the equation is y^2=x+9. If I isolate y, my equation becomes y=3*sq root of x and it graphs as a function. The answer in the book says it's not a function because the equation is (y+1)^2=x. ???????? Click here to see answer by josmiceli(9662)

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