# 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

## Tutors Answer Your Questions about Graphs (FREE)

 Question 90825: Solve the system by graphing. x – y = 2 3x – 3y = 6 Click here to see answer by malakumar_kos@yahoo.com(315)

 Question 90824: Solve the system by graphing. x – y = –3 x – y = 4 Click here to see answer by malakumar_kos@yahoo.com(315)

 Question 90780: Solve the system by graphing. 3x + y = 6 3x – y = 0 Click here to see answer by malakumar_kos@yahoo.com(315)

 Question 90937: page 718 of chapter 8 section 3 question #16 #18 #28 #38 I am double checking my work and noticed after doing these 4 yesterday, they are confusing the heck out of me today. Can you explain how to solve these so I can refresh my mind and be assured that I done them properly before I turn in my assignments today? (I am giving four different styles) #16 solve by substitution 5x-2y=-5 then y-5x=3 now question #20 solve by substitution 8x-4y=16 then y=2x-4 now question #28 solve by substitution 4x-12y=5 then -x+3y=-1 and question #38 solve by either addition or substitution. If a unique solution does not exist, stste wether it is dependent or inconsistent. 10x+2y=7 and y=-5x+3 THANKS! My answers that I had for #16 was x=-1/5 and y=2 then I did it over today and got x =0.6 and y =4 so I am just lost now. Click here to see answer by stanbon(57282)

 Question 90967: Plot the point with coordinates (–4, 0) Click here to see answer by jim_thompson5910(28536)

 Question 90966: Find four solutions for the equation 3x + 5y = 15 Click here to see answer by checkley75(3666)

 Question 90964: Which of the ordered pairs (0, 0), (–2, 10), (–1, –5), (–3, 9) are solutions for the equation y = 5x? Click here to see answer by ankor@dixie-net.com(15645)

 Question 91080: Graph F(x) = 2/x^2-9 Click here to see answer by Earlsdon(6287)

 Question 91088: this is possibly the harderst proble I have ever seen in my life. Please help me. I have such a difficult time with word problems. Please help me with this so I can get on with the rest of my math. I really appreciate your help This problem set involves a formula (a rational function) with which a new tortilla company might be able to forecast its production over the first few weeks of operation. In this formula, C(t) is the number of bags of tortillas that can be produced per week after t weeks of production. Here is the rational function that was developed to best describe the fledgling company's production. c (t)= 1000t^2 -10,000t / t^2-10t+25 What does the graph of the function look like? To answer this question, find a. The vertical asymptotes, if any: b. The horizontal asymptote, if any: c. The t intercepts, if any: d. The C intercept, if any: e. The value of C(t) at: t = 10 weeks t = 15 weeks t = 20 weeks t = 25 weeks t = 30 weeks t = 35 weeks Show your calculations f. The value of C(t) at: t = -5 t = -10 What is the projected maximum number of bags of tortillas that the company can never exceed? Discuss this answer in terms of the horizontal asymptote. 3. Can the company reach that maximum? If so, after how long 4. Give an interpretation of what might be happening to the company's production efforts from week 5 to week 10? Discuss this answer in detail. 5. In terms of the business application, is there any meaning for the value of C(t) when t = -5 and t = -10? Explain your answer. Click here to see answer by stanbon(57282)

 Question 91083: A factory finds that the number of items it can produce per week after t weeks of production is approximated by C(t) = 31,000t^2+580/2t^2+5t+24 t >- 0. Theoretically, what is the most the factory could produce in a single week, according to this equation. Click here to see answer by stanbon(57282)

 Question 90965: Complete the ordered pairs for the equation 2x + y = 10. (5, ), ( , 10), ( , –2), (0, ) Click here to see answer by ankor@dixie-net.com(15645)

 Question 91160: Graph each equation. Plot at least five points for each equation. x - 2y = 6 Click here to see answer by checkley71(8403)

 Question 91164: Find the slope and y-intercept for each line that has a slope and y-intercept. x + 2y = 3 Click here to see answer by jim_thompson5910(28536)

 Question 91162: Draw l1 through (-4,0) and (0,6). What is the slope of any line parallel to l1? Draw l2 through the origin and parallel to l1. Click here to see answer by checkley71(8403)

 Question 91168: Graph x + y = –2 Click here to see answer by checkley71(8403)

 Question 91172: Write each equation in slope-intercept form. 2x + 3y = 90 Click here to see answer by checkley71(8403)

 Question 91176: 2) By looking at the equation for a rational function, how can you tell if there will be "y-values" which will never occur? How might this be represented on the graph? Click here to see answer by stanbon(57282)

 Question 91188: Find the equation of the line that goes through the given point and has the given slope. Write the answer in slope-intercept form. (-1,-5), -8 Click here to see answer by stanbon(57282)

 Question 91189: Find the equation of each line. Write the answer in slope-intercept form. The line is parallel to -3x + 2y = 9 and contains the point (-2,1). Click here to see answer by jim_thompson5910(28536)

 Question 91169: Plot the point with coordinates (–3, –3 Click here to see answer by jim_thompson5910(28536)

 Question 91170: Plot the point with coordinates (0, 2) Click here to see answer by jim_thompson5910(28536)

 Question 91250: My question is: What is the slope of the following line? 2x – 3y = 18 Thanks!:) Click here to see answer by jim_thompson5910(28536)

 Question 91249: My question is: What is the slope of the following line? 2x – 3y = 18 Thanks!:) Click here to see answer by praseenakos@yahoo.com(507)

 Question 90552: Please help me with this: It asks to have the inequality solved and to state and graph the solution set??? x/x-3<=-8/x-6 HELP PLEASE!!! Click here to see answer by stanbon(57282)

 Question 91299: Find the horizontal asymptote of F(x) =5x^2+1/ x^2+2x+1 Click here to see answer by stanbon(57282)

 Question 91298: Graph F(x) = x+1 / x^2-x -6 Click here to see answer by stanbon(57282)

 Question 91295: a) If y=squarerootx +2 , fill in the following table for x = 0, 1, 2, 3, 4. Round to three decimal places where necessary. b) Explain why no negative values are chosen as values to substitute in for x. Click here to see answer by praseenakos@yahoo.com(507)

 Question 91285: Graph f(x) = –2x + 4 Click here to see answer by praseenakos@yahoo.com(507)

 Question 91297: given: F(x) = x/x^2-9 a. Find the x-intercept(s). b. Find the y-intercept(s). c. Find the vertical asymptote(s) (write as an equation of a line). d. Find the horizontal asymptote(s) (write as an equation of a line). e. For x<-3, is there a value which F(x) cannot exceed, AND/OR a value which F(x) cannot fall below? Explain your answers. f. Is the function increasing or decreasing in the interval -3<- x <- 3? g. As x approaches 3 from the left, what happens to the function values? h. As x approaches 3 from the right, what happens to the function values? Click here to see answer by stanbon(57282)

 Question 91286: Graph f(x) = 4x + 1 Click here to see answer by praseenakos@yahoo.com(507)

 Question 91283: Graph f(x) = –x – 2 Click here to see answer by praseenakos@yahoo.com(507)

 Question 91282: Graph f(x) = –3x – 2 Click here to see answer by praseenakos@yahoo.com(507)

 Question 91281: Graph f(x) = –2x + 2 Click here to see answer by praseenakos@yahoo.com(507)

 Question 91306: I'm struggling at graphing this equation. This would help me a lot. Thanks. Problem: x+2y+5=0 Click here to see answer by stanbon(57282)

 Question 91291: Graph the inequality. 3x + y < 5 with a line under the greater sighn Click here to see answer by jim_thompson5910(28536)

 Question 91341: Describe the end behavior of the graph of the function f(x)=2x^3 - 8x + 1? Click here to see answer by stanbon(57282)

 Question 91384: What are the real values of x that are solutions for the inequality |x-2|less than or equal to 6? Click here to see answer by stanbon(57282)

 Question 91364: Graph the inequality. y > 3x - Click here to see answer by jim_thompson5910(28536)

 Question 91365: Solve the following system of linear inequalities by graphing. 3x – y < 2 x + y > 2 Click here to see answer by jim_thompson5910(28536)

 Question 91361: Graph the inequality. 2x + 3y > 6 Click here to see answer by jim_thompson5910(28536)

 Question 91362: Graph the inequality. 2x + 3y > 6 Click here to see answer by jim_thompson5910(28536)

 Question 91363: Graph the inequality. y > 1 - Click here to see answer by jim_thompson5910(28536)

 Question 91360: Graph the inequality. x < –2 Click here to see answer by jim_thompson5910(28536)

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