# Questions on Algebra: Linear Equations, Graphs, Slope answered by real tutors!

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 Algebra: Linear Equations, Graphs, Slope Solvers Lessons Answers archive Quiz In Depth

 Question 34041: Can someone give me a step by step of how to solve this? -27.23+x=9.77 Click here to see answer by sarah_adam(201)

 Question 34045: I entered the wrong email address, so if this one's probably out in cyberspace somewhere. So here it is again: Can someone give me a step by step of how to solve this? -27.23+x=9.77 Click here to see answer by ichudov(499)

 Question 34092: Please explain in detail, how to solve this please? Solve the system of equations by substitution: x + 2y = 9 3x - y = 13 Thank you for your assistance. Click here to see answer by sarah_adam(201)

 Question 34093: Can you explain in detail, how to solve this please? Solve the system of equations by substitution: 4x - 3y = 1 12x - 9y = 3 Thank you so much! Click here to see answer by Prithwis(166)

 Question 34167: How do you find the solution of system to an equation? Click here to see answer by longjonsilver(2297)

 Question 34086: Can you explain in detail how this is achieved and help me with this please? Find the slope of the line that passes through the points (4, -7) and (-2, -5). Thank you Click here to see answer by kietra(57)

 Question 34291: I am truly lost...the directions read, write an equation in slope-intercept form of the line that passes through the given point and is parallel to the graph of each equation. the problem reads (2, -7), y=x-2 Click here to see answer by stanbon(57940)

 Question 34313: I need an equation that is parallel to the line y = -3x +2 and passes through the point (0,3) Click here to see answer by venugopalramana(3286)

 Question 34299: Now this is a challenge for me. the question reads, write an equation in slope-intercept form of the line that passes through a given point and is perpendicular to the graph of each equation. problem #33 is (6, -13), 2x - 9y = 5 Click here to see answer by venugopalramana(3286)

 Question 34297: My problem is (-5, -4) 2x + 3y = -1 i have to write an equation in slope-intercept form of the line that passes through the given point and is paralle to ther graph of each equation. these make no sense, I've tried tofigure it out a few times. NO LUCK help please Click here to see answer by venugopalramana(3286)

 Question 34292: I need to write an equation in slope-intercept form of the line that passes through the given point and is parallel to the graph of each equation. my problem is (2,3) y = x+5 Please help, I'm lost on these kinds of problems. Click here to see answer by venugopalramana(3286)

 Question 34255: I'm trying to solve a word problem that involves translating it into an algebraic sentance-then solve it. So I found the equation to be 5-3(n)=43. Now I need to solve the equation and I'm stuck. Click here to see answer by benni1013(197)

 Question 34393: In all equations of graphs the equation is y=mx+b. Being that "m" is equal to the slope and "b" representing the y-interscept. My question is why do they use those specific letters for the equation? Click here to see answer by checkley71(8403)

 Question 34437: how do you write the equation of a line in standard form with a slope of 3 and ay intercept of 2 Click here to see answer by dimndskier(8)

 Question 33929: I need help with solving this equation, too: -27.23+x=9.77 Click here to see answer by checkley71(8403)

 Question 34430: For the systems of linear equations in this question - Determine how many solutions exist - Use either elimination or substitution to find the solutions (if any) - Graph the two lines, labeling the x-intercepts, y-intercepts, and points of intersection x + y = 3 and y = x + 3 Click here to see answer by venugopalramana(3286)

 Question 34429: For the systems of linear equations in this question - Determine how many solutions exist - Use either elimination or substitution to find the solutions (if any) - Graph the two lines, labeling the x-intercepts, y-intercepts, and points of intersection y = 2x + 3 and y = -x - 4 Click here to see answer by venugopalramana(3286)

 Question 34428: For the systems of linear equations in this question - Determine how many solutions exist - Use either elimination or substitution to find the solutions (if any) - Graph the two lines, labeling the x-intercepts, y-intercepts, and points of intersection 2x + 3y = 8 and 3x + 2y = 7 Click here to see answer by venugopalramana(3286)

 Question 34427: For the systems of linear equations in question 1 - Determine how many solutions exist - Use either elimination or substitution to find the solutions (if any) - Graph the two lines, labeling the x-intercepts, y-intercepts, and points of intersection 1. (8 points) y = 2x + 3 and y = -x - 4 Click here to see answer by venugopalramana(3286)

 Question 34368: - Determine how many solutions exist - Use either elimination or substitution to find the solutions (if any) - Graph the two lines, labeling the x-intercepts, y-intercepts, and points of intersection (8 points) x + y = 3 and y = x + 3 Click here to see answer by venugopalramana(3286)

 Question 34367: - Determine how many solutions exist - Use either elimination or substitution to find the solutions (if any) - Graph the two lines, labeling the x-intercepts, y-intercepts, and points of intersection (8 points) 2x + 3y = 8 and 3x + 2y = 7 Click here to see answer by venugopalramana(3286)

 Question 34366: - Determine how many solutions exist - Use either elimination or substitution to find the solutions (if any) - Graph the two lines, labeling the x-intercepts, y-intercepts, and points of intersection 1. (8 points) y = 2x + 3 and y = -x - 4 Click here to see answer by venugopalramana(3286)

 Question 34546: Please help... I am going crazy!! Question; Find the slope of the line satisfying the given condtions. #36 Through (5,-3) and (1,-7). Thank you so much for your help! Angela M Click here to see answer by checkley71(8403)

 Question 34260: In this word problem I got the equation 6(C+1800). I have to find C-that's if the equation is even right. The problem reads: The Alpine Valley Ski Shop sells both cross-country and downhill skis. During a year they sell six times as many dowmhill skis as cross country skis. Determine the number of pairs of cross-country skis sold if the difference in the number of pairs of downhill and cross-country skis sold is 1800. Click here to see answer by checkley71(8403)

 Question 34571: On the first day of school, the percentage of boys in a particular class is 60%. During the school year, six girls move away, and are replaced in the class by six boys; this makes the class roster 75% boys. Find the number of boys and girls in the class on the first day of school. Click here to see answer by stanbon(57940)

 Question 34602: For the system of linear equations in questions 1 - Determine how many solutions exist - Use either elimination or substitution to find the solutions (if any) - Graph the two lines, labeling the x-intercepts, y-intercepts, and points of intersection 3x + 7y = 3 and 12x + 28y = 16 Click here to see answer by stanbon(57940)

 Question 34597: This is a problem my mom gave me and it is driving me crazy. I am in the 5th grade and in an advanced math class, but I cannot get this. The problem is to write an algebraic expression that will let me describe a set of data. The data when plotted on a grid has one row of 3 tiles then three rows of 5 tiles then one row of 3 tiles and then three rows of 5 tiles and keps on repeating. So the data in two colums (column one being tiles in next row and column two being the total tiles 'so far) is as follows: # tiles (Column 1) Total So Far (Column 2) 3 3 5 8 5 13 5 18 3 21 5 26 5 31 5 36 3 39 Can you please help me write an algebraic expression to describe the above data? Thanks Click here to see answer by venugopalramana(3286)

 Question 34633: Question; Decide whether of not the equations has a circle as its graph. If it does, give the center and the radius. #20. x^2-12x+y^2+20=0 Thank you so much for your help. Angela Click here to see answer by venugopalramana(3286)

 Question 34631: I have 2 questions a/ A is nxn matrix and v1,v2,...,vn be linearly independent in Rn. What must be true about A for Av1, Av2,..., Av3 to be linearly independent? b/ Must a basis of Pn contain a polynomial of degree K for each k=0,1,...,n ? Justify your answer Click here to see answer by venugopalramana(3286)

 Question 34630: I am having a problem understanding part A of question # 70. Directions; The table gives the number of cellular telephones subscribers (in thousands) from 1994 through 1999. Question for part A is; Find the change in subscribers for 1994-1995, 1995-1996 and so on. The table reads as follows: 1994-24,134 1995-33,786 1996-44,043 1997-55,312 1998-69,209 1999-86,047 Click here to see answer by checkley71(8403)

 Question 34634: I ask this question yesterday and I didn't get a response. I thought I would try today and see what happens. Thanks so much for your time. Question; Find the slope of the line and sketch the graph. #48. -4y=5x I came up with 0-(4-)/5-0 = 4/5 or (0,4), (5,0) but I am not sure I did it right. Thanks so much for your time. I really appericate it. Angela Click here to see answer by checkley71(8403)

 Question 34570: In a survey, 20 voters were asked their age. The results are summarized in the frequency below. Construct a histogram. Age of voters # of voters 20 - 29............ 5 30 - 39............ 5 40 - 49............ 6 50 - 59............ 0 60 - 69............ 4 Click here to see answer by checkley71(8403)

 Question 34795: Hi, I need to graph this problem:y=x+2 y=2x+1 I know that the solution is (1,3). Its just every time that I try to graph the equation, my lines dont cross correctly. So that you are not confused with what I am talking about, I am supposed to be solving linear systems by graphing. Please, if you can email this to me before 4/25/06 since it is 4/24/06 that would be great! Thank you and have a great day! Sincerely, a student working for 1st honors this marking period Click here to see answer by stanbon(57940)

 Question 34799: Determine the equation fo each line. Write the answer in standard form using only intergers as the coefficients. The Line through (-2,0) iwth slope -3/4. I tried. Y=mx+b Y=-3/4+-2/0 ? Click here to see answer by longjonsilver(2297)

 Question 34801: Sorry, typed the e-mail wrong. Question: Determine the equation of each line. Write the answer in standard form using only intergers as the coefficient. #36 The line through (-2,0) with slope -3/4. I tried. y=mx+b y=-3/4x+-2/0 Click here to see answer by Earlsdon(6294)

 Question 34797: This is from a worksheet from Glencoe Algebra 1. Mr Adim's science class launched a toy rocket from ground level with an initial upward velocity of 60 feet per second. The height h of the rocket in feet above the ground after t seconds is modeled by the equation .How long was the rocket in the air before it returned to the ground? Click here to see answer by longjonsilver(2297)
 Question 34797: This is from a worksheet from Glencoe Algebra 1. Mr Adim's science class launched a toy rocket from ground level with an initial upward velocity of 60 feet per second. The height h of the rocket in feet above the ground after t seconds is modeled by the equation .How long was the rocket in the air before it returned to the ground? Click here to see answer by Earlsdon(6294)