# 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 543916: When using the substitution method, what expression for x in the second equation would be substituted in the first equation? 4x – 7y = –9 x + 3y = 12 Click here to see answer by stanbon(57246)

 Question 544057: If f and g are linear functions such that g(f(x)) = 2x+ 6 and the graph of y = f(g(x)) passes through the origin what is the value of f(g(2011))? Click here to see answer by stanbon(57246)

 Question 544134: Please help me help my kiddo with homework. Thanks! Graph solution to system of inequalities -x + y ≥ 0 -2x + y ≥ 3 Click here to see answer by lwsshak3(6469)

 Question 544507: Can you show the graph of 3y-7x<-15 with work showing how you got that. Thank you Click here to see answer by lwsshak3(6469)

 Question 544491: For the equation y = 3x + 5 write the equation of the lines in slope intercept form that pass through point (-4,1) and are parallel and perpendicular to the given line. Click here to see answer by mananth(12270)

 Question 544123: How do you write an equation in slope intercept form for the line that passes through (3, 7) and (7, 4)? Click here to see answer by JBarnum(2044)

 Question 544847: The problem I have is 4x – 3 = x – y. I need to graph this but I don't understand how to get there, teacher didn't cover an equation like this. I have tried subtracting x from both sides leaving 3x - 3 = -y but I don't see how you would get graph points from that. Could you please explain how I can solve this problem? I don't want just the answer, i'd like to know how to solve for future reference. Again, graph 4x-3=x-y Click here to see answer by saifoo.khan(162)
 Question 544847: The problem I have is 4x – 3 = x – y. I need to graph this but I don't understand how to get there, teacher didn't cover an equation like this. I have tried subtracting x from both sides leaving 3x - 3 = -y but I don't see how you would get graph points from that. Could you please explain how I can solve this problem? I don't want just the answer, i'd like to know how to solve for future reference. Again, graph 4x-3=x-y Click here to see answer by rapaljer(4667)
 Question 544847: The problem I have is 4x – 3 = x – y. I need to graph this but I don't understand how to get there, teacher didn't cover an equation like this. I have tried subtracting x from both sides leaving 3x - 3 = -y but I don't see how you would get graph points from that. Could you please explain how I can solve this problem? I don't want just the answer, i'd like to know how to solve for future reference. Again, graph 4x-3=x-y Click here to see answer by josmiceli(9661)

 Question 544862: How do you graph 3x + y = 9? Click here to see answer by saifoo.khan(162)
 Question 544862: How do you graph 3x + y = 9? Click here to see answer by rapaljer(4667)

 Question 544771: How would I type an equation in the slope intercept form for the points (2,5) and (6,8)? Click here to see answer by saifoo.khan(162)

 Question 544969: Write the equation of the line with m=-4 and pass through (3, -1) Click here to see answer by cira554(7)

 Question 544675: I need help graphing the following equations: 2x+5y=12 4x+3y=2 3x-2y=10 If you could help me graph the first one, I am sure I could figure out the rest. Thank you, Emily Click here to see answer by ankor@dixie-net.com(15638)

 Question 545150: find an equation of the containing the given pair of points (2,5) and (6,7) Click here to see answer by saifoo.khan(162)

 Question 545090: Are the following lines parallel, perpendicular, or neither: a.) 9x - 12y = 17 and 3x - 4y = 17 b.) y = -3 and x = -3 c.) y = 3x + 4 and y = -3x - 2 How do I solve these. Please explain and show work so I can follow along/understand what I am suppose to be doing. Click here to see answer by cira554(7)

 Question 545243: I want to find the slope, y-intercept and angle of this equation: 14x -y -sqrt(2) = 0 I know the answer but I want the method please Anwer: Slope = 14, y-intercept = sqrt(2) and the degrees = about 85.9 Thank you Click here to see answer by Alan3354(30983)

 Question 545341: write an equation of a line that passes through the origin and has a slope of 3 Click here to see answer by rfer(12647)

 Question 545238: Find the Equation of a Line Given That You Know Two Points it Passes Through. (1/2,-3) and (-2,1) Thank you Click here to see answer by KMST(1868)

 Question 545479: the pitch, or frequency, of a vibrating string varies directly with the square root of tension. if a string vibrates at a frequency of 144 hertz due to a tension of 2 pounds, find the frequency when the tension is 18 pounds. Click here to see answer by Alan3354(30983)

 Question 545560: how do i write aN Equation in slope intercept form for y+3=3(x-1)????? Click here to see answer by jerryguo41(162)

 Question 545797: Please can someone help me solve this problem? In slope intercept form, give the equation of the line that contains (1-2),(-2,1) Thank you for your help Click here to see answer by mananth(12270)

 Question 545769: what is the equation in standard form that passes through the point (2,5) and has the same slope as the graph of 3x+y=9? Click here to see answer by mananth(12270)

 Question 545929: can you explain x and y intercepts for the problem x^2+4x-5 Click here to see answer by htmentor(788)

 Question 545941: without graphing answer the following questions about the system, x-y=7, 9x=9y+4. Does this system have a solution? yes or no? Is the system inconsistent, are the equations dependent, or neither? What does this graph look like? Intersecting lines? One line? Or parallel lines? Thank you for your help Click here to see answer by lmeeks54(105)

 Question 546089: Hello how are you?..While i was just wondering if you guys can explain to me in a simple way to write equations in slope intercept form. Thank you so much! Click here to see answer by Alan3354(30983)

 Question 545839: No one has been able to solve this for me Explain how exponnential functions are relevant and applicable to real life situations. Think of a real life situation that can be represented by an exponential function. Write a function to represent the situation. Label all vaiables. Explain how you wrote the function. Graph your equation. pleasee help Click here to see answer by ankor@dixie-net.com(15638)

 Question 546237: find the slope of the line passing through the points (-8, -4) and (2,-7) Click here to see answer by jim_thompson5910(28504)