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 485475: what is the slope and y-intercept for 4-1/3y=5x Click here to see answer by nerdybill(6963)

 Question 485470: The following is the graph of y=2x+5 trrue or false Click here to see answer by Alan3354(30993)

 Question 485574: what is the slope and y-intercept of y=3x-4 ? Click here to see answer by John10(245)

 Question 485595: Find an equation of the line containing the given pair of points (-1,-3)and (-8,-9). The equation of the line in the slope-intercept form is y=______. Click here to see answer by John10(245)

 Question 485786: I need to solve the linear equation 8=-3x-7 Click here to see answer by rfer(12677)

 Question 485957: I am not to sure of myself in Algebra and need to graph something...I have tried but as I said I am not sure can you please tell me how to graph the inequality x + y = 3 Click here to see answer by mananth(12270)

 Question 485964: Use the vertex formula to find the vertex of the quadratic function f(x)=-x^2+6x-11 The vertex is ? Click here to see answer by rfer(12677)

 Question 486068: Hello, I am confused on this, I thought the graph meant you know the regular area but then I looked at brackets and could tell something was different. Could you describe what the graph of interval [-4, 10] looks like? Click here to see answer by Edwin McCravy(8916)

 Question 486117: (2,4);x+4y=7 what is the equation of the line y=_____? Click here to see answer by richard1234(5390)

 Question 485731: what is x=2y+4. how do i graph it, in y=mx+b Click here to see answer by bucky(2189)
 Question 485731: what is x=2y+4. how do i graph it, in y=mx+b Click here to see answer by richard1234(5390)

 Question 486371: I needed to use a situation where I compared to phone plans then develop a linear algebraic equation. Additionally, I need to determine where the 2 cost options are equivalent and then depict the situation graphically. So far I have 2 phone plans. Plan A is \$39.99 a month for 600 minutes with \$20 for texting and \$.55 for each additional minute (needs a total of 750 minutes). Plan B is \$49.99 a month for 700 minutes with \$10 for texting and \$.50 for each additional minute (need a total of 750 minutes). Here's what I have: y=.55(x-600)+ (39.99+20) y=.55(750-600)+59.99 y=.55(150)+59.99 y=\$142.49 Am I on the right track? Not sure how to find equality and graph it? Click here to see answer by Theo(3468)

 Question 486445: Graph the function below by plotting the points. 3x-2y=-8 I can't seem to plot the correct points. Click here to see answer by josmiceli(9697)

 Question 486553: how do you graph this? x + 2y = 6 Click here to see answer by mananth(12270)

 Question 486707: slope - intercept form (8,0), m = -3 Click here to see answer by Tatiana_Stebko(1326)

 Question 486718: how do you dolve and what are the steps to solving y=4-3x Click here to see answer by richard1234(5390)

 Question 487575: y = -3/4x-6 what is y if x is 8? what is x if y is 6? what is y if x is 0? what is x if y is -9? what is y if x is -4? what is x if y is 0? Click here to see answer by richard1234(5390)

 Question 487820: I have never seen this so if someone could help I would appreciate...the way I did it I got 0 Solve for H d=(0.5) hv Click here to see answer by ankor@dixie-net.com(15661)

 Question 487974: f(x)=2x^2-9x+7 How do I solve for x here? Click here to see answer by richard1234(5390)

 Question 488200: Solve each system graphically y = x + 2, 3y − 2x = 4? I need the problem worked out and explained and graphed if possible. Thank you Click here to see answer by lwsshak3(6523)

 Question 487961: 9/10(3+8x)+3 greater than or equal to 15 [[9/10 is a fraction by the way) Can you help me solve this please? Click here to see answer by lwsshak3(6523)

 Question 487399: can someone please help me? solve each system by graphing both equations on the same axes. give the ordered pair for the point of intersection. 6. 5x+5y=8 x=4-y Click here to see answer by lwsshak3(6523)

 Question 486444: f(x)=1/2x+5 Says to graph the linear function. I keep graphing this but I just don't seem to be plotting it incorrectly. Click here to see answer by lwsshak3(6523)

 Question 488731: I don't know how to put the lines so I will use parenthesis in their place. Can someone please help me solve (11+6x)less than or equal to 47 Click here to see answer by richard1234(5390)

 Question 489814: If a line passes through the points (1,2) on a graph and the slope is 7, how do you write the solution in standard form? Click here to see answer by MathLover1(6645)

 Question 489895: Sometimes it is very obvious which method is most efficient to solve a system of equations because of the way the problem is set up. To be efficient, under what conditions would you use graphing? Elimination? Substitution? Provide an example of each. Click here to see answer by richard1234(5390)

 Question 489896: After solving a system of linear equations, how can you check your answer to determine whether it is correct? Demonstrate the process of checking an answer with an example. Click here to see answer by richard1234(5390)

 Question 490189: HELP !!! I NEED UR HELP !! A straight line with equation 2y=kx+h passes through the points (-3,6) and (1,11). Find the value of k and h. Click here to see answer by josmiceli(9697)

 Question 490209: this is first time algebra and it is confusing. were do i start with this proble profit=\$0.15 x number of e-readers sold - \$28 values given in 1000 Click here to see answer by Theo(3468)

 Question 490309: I need help with : 80-6(4x-13)less then or equal to 4x-3(5x-1)+12 I can solve it as far as: 158-24x less then or equal to -11x + 15 then get confused as to what to do. Thank you, Click here to see answer by lwsshak3(6523)

 Question 489785: I need help in finding the coordinates of the vertex for the parabola defined by the given quadratic function f(x) = -x^2 -4x + 8 Click here to see answer by lwsshak3(6523)
 Question 489785: I need help in finding the coordinates of the vertex for the parabola defined by the given quadratic function f(x) = -x^2 -4x + 8 Click here to see answer by MathTherapy(1430)

 Question 488521: solve the inequality, then write the solution set in interval notation and choose the correct graph: 4(4k+1)-8(k-2) ≥3(2k+5)-2 Click here to see answer by lwsshak3(6523)

 Question 488639: Find the equation of the line that passes through the point (7,-3) and is parallel to a line with an undefined slope Click here to see answer by lwsshak3(6523)

 Question 490364: I need to find the slope and y intercept of 4y+4x+6=18+4x. Completely lost. Do I combine the 4x's? Click here to see answer by rfer(12677)

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