# 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 178535: Tickets to a concert cost \$25 for lower-level seats and \$10 for upper-level seats. A company plans to buy up to 30 tickets for employees and spend up to \$500. Write and graph a system of linear inequalities to represent all the possible combinations of lower-level and upper-level tickets the company can buy. I got: x + y is less than or equal to 30 25x + 10y is less than or equal to 500 my problem: I don't know where to go from here to graph. PLEASE HELP! Click here to see answer by stanbon(57246)

 Question 178537: COULD YOU PLEASE HELP ME SOLVE THIS EQUATION FOR Y. I have tried and I am still not getting anythere with it. Thank you. 1/2(4X -6) = 2/3(6X -9)+3 Click here to see answer by Alan3354(30983)

 Question 178539: How do you solve this inequality and show the answer on the number line? 1. -2<3x+1<11 2. -3< (2x- 1)/3<7 I am getting somewhat confused with my formula. Help , I am desperate. Thank you. Click here to see answer by solver91311(16868)

 Question 178534: Graph y=(1/3)^x. Identify the domain, asymptote, and range. Did I do this right? x=3 -2 -1 0 1 2 3 y=27 9 3 1 1/3 1/9 1/27 Domain=all real #s asymptote=y=0 Range=all positive real #s Click here to see answer by jim_thompson5910(28504)

 Question 178444: please help me with this solution. I am not getting the right answer. John plans a road trip from Chicago to Detroit in his Toyota with an overnight stay in Hammond,Indiana. On Wednesday, he drove from Chicago to Hammond to Detroit at an average speed of 69 mph. His driving time on Thursday is 2 hours longer than his driving time on Wednesday. If the total distance from Chicago to Detroit is 326 miles, then what is the total number of hours he drove on both days? How far is Detroit from Hammond? Thank you. Click here to see answer by Mathtut(3670)

 Question 178552: Write a system of two equations in two unknowns for each problem. Solve each system by the metheod of your choice. Ziggy's Famous Yogurt blends regular yogurt that is 3% fat with its no-fat yogurt to obtain lowfat yogurt that is 1% fat. How many pounds of regular yogurt and how many pounds of no-fat yogurt should be mixed to obtain 60 pounds of low-fat yogurt? Click here to see answer by Mathtut(3670)

 Question 178328: From a base elevation of 7200 ft, a mountain peak in Colorado rises to a summit elevation of 14598 ft over a horizontal distance of 15848 ft find the grade of the peak? Click here to see answer by ankor@dixie-net.com(15638)

 Question 178591: help! i dont understand this problem...i know what real and imaginary numbers are but this one really confused me! thanks! Find the real and imaginary parts of the complex number. -8/9 i 1 ___ (real part) 2 ___(imaginary part) Click here to see answer by cartert(27)
 Question 178591: help! i dont understand this problem...i know what real and imaginary numbers are but this one really confused me! thanks! Find the real and imaginary parts of the complex number. -8/9 i 1 ___ (real part) 2 ___(imaginary part) Click here to see answer by Mathtut(3670)
 Question 178591: help! i dont understand this problem...i know what real and imaginary numbers are but this one really confused me! thanks! Find the real and imaginary parts of the complex number. -8/9 i 1 ___ (real part) 2 ___(imaginary part) Click here to see answer by Fombitz(13828)

 Question 178638: What similarities and differences do you see between functions and linear equations. Are all linear equations functions? Is there an instance when a linear equation is not a function. Create an equation of a nonlinear function and provide two inputs for examples. Click here to see answer by Mathtut(3670)

 Question 178648: a function gives the value of C as 2 x (22/7) x r Find C when r=7cm and r=91cm Click here to see answer by Zef(4)
 Question 178648: a function gives the value of C as 2 x (22/7) x r Find C when r=7cm and r=91cm Click here to see answer by Mathtut(3670)

 Question 178646: This question concerns using the slope intercept form. The problem is this, write an equation of the line that has the given slope and passes through the given point. m= -5, (-3,6) how do i do this problem and please explain how to do it in slope intercept form Click here to see answer by scott8148(6628)

 Question 178668: Solve by graphing. Which one is it and explain: independent, inconsistent or dependent. Please y = -x y = -x + 3 I am confused with this one. Thank you Click here to see answer by Alan3354(30983)
 Question 178668: Solve by graphing. Which one is it and explain: independent, inconsistent or dependent. Please y = -x y = -x + 3 I am confused with this one. Thank you Click here to see answer by Mathtut(3670)

 Question 178666: what is the slope of a line that passes throught(-8,9)and(0,6). Click here to see answer by Alan3354(30983)

 Question 178657: What is the difference between domain and range? Describe a real-life situation that could be modeled by a function. Click here to see answer by Mathtut(3670)

 Question 178669: Solve by substitution, which one is it, independent, inconsistent, or dependent. Please show how it is solved. Thank you. x-y = 3 3x - 2y = 3 and 2x -y = 3 6x - 9 = 3y Click here to see answer by stanbon(57246)

 Question 178671: need help finding which equation you would use to isolate a variable. 4x-y=-6 -m+5n=16 Click here to see answer by Mathtut(3670)

 Question 178684: Can these systems be solved with the addition method. I am not getting it if it can. Show steps so I may see where I went wrong. Please thank you. 3x - 2y =8 x = -2y and 4y = -5x 5x + 8y = 20 Thank you Click here to see answer by stanbon(57246)

 Question 178688: I tried solving this system, I am not getting it. Using the addition method, solve then state if it is independent, inconsistent, dependent. show steps so I can see what I did wrong. -3x + y =3 2x - 3y =5 and 5x - 3y = -20 3x + 2y = 7 Click here to see answer by stanbon(57246)

 Question 178689: Determine whether each system of linear equations has (a) one and only one solution, (b) infinitely many solutions, or (c) not solution. Find all solutions whenever they exist. 1.) x - 3y = -1 4x + 3y = 11 Click here to see answer by stanbon(57246)

 Question 178696: i hate word problems. A restaurant purchased eight tablecloths and five napkins for \$106. A week later, a tablecloth and six napkins were brought for \$ 24. Find the cost of one tablecloth and one napkin; assuming the same prices for both purchases. This is what I started. 8t + 5n = 106 t + 6n = 24 mulyiply both sides by ( -8) 8t + 5n + 106 -8t - 48n = -192 -43n = 86 n = -2 I don' t think this is right. Click here to see answer by Mathtut(3670)
 Question 178696: i hate word problems. A restaurant purchased eight tablecloths and five napkins for \$106. A week later, a tablecloth and six napkins were brought for \$ 24. Find the cost of one tablecloth and one napkin; assuming the same prices for both purchases. This is what I started. 8t + 5n = 106 t + 6n = 24 mulyiply both sides by ( -8) 8t + 5n + 106 -8t - 48n = -192 -43n = 86 n = -2 I don' t think this is right. Click here to see answer by HyperBrain(694)

 Question 178723: m=4, (-3,0) m=3, (2,-2) m=-3, (1/2,2) m= -2, (3, 1/3) Can you find and equation of the line that has the given slope and passes through the given point? Click here to see answer by Fombitz(13828)
 Question 178723: m=4, (-3,0) m=3, (2,-2) m=-3, (1/2,2) m= -2, (3, 1/3) Can you find and equation of the line that has the given slope and passes through the given point? Click here to see answer by jojo14344(1512)

 Question 178732: What similarities and differences do you see between functions and linear equations? Are all linear equations functions? Is there an instance when a linear equation is not a function. Create an equation of a nonlinear function and provide two inputs. Click here to see answer by Mathtut(3670)

 Question 178757: why is the line x=4 a vertical line? Click here to see answer by Mathtut(3670)

 Question 178762: I need help with nonlinear functions, a few examples and some imputs to evaluate Click here to see answer by Mathtut(3670)

 Question 178784: How to solve C= 2.85n + 30.52 to a) Find and interpret the C-intercept for the line? b) Find and interpret the n-intercept for the line? c) Graph the line for n ranging from 0 through 20? Can you please offer me some helpful information on how to solve equations such as these? Thank you, kelloggdmk Click here to see answer by Mathtut(3670)

 Question 178798: If a line passes through (5, 2) and has a slope of 2/3, then what is the value of y on this line when x = 8, x=11 and x= 12? Click here to see answer by Mathtut(3670)

 Question 178800: Solve each system by graphing y = 2x+ 1 x+y =-2 Click here to see answer by jojo14344(1512)

 Question 178816: determine the best method to solve each system of equations. then solve the system. 3x-5y=7 2x+5y=13 Click here to see answer by jim_thompson5910(28504)

 Question 178932: use the y-intercepts to graph the equation -6x+y=21 Click here to see answer by Mathtut(3670)

 Question 178967: Find the slope and y-intercept and graph the following linear equation. y=-4x+1 I have the graph for this problem, but I need to know the steps it took to get the slope and y-intercept. Can you please explain each step. Thank you Click here to see answer by Mathtut(3670)

 Question 178918: What is the equation of the line passing through the points(3,7) and (11,13)? Also explain to me what is slope? Click here to see answer by Mathtut(3670)
 Question 178918: What is the equation of the line passing through the points(3,7) and (11,13)? Also explain to me what is slope? Click here to see answer by ankor@dixie-net.com(15638)

 Question 178977: A line has a slope of 7. Use the slope formula to find the missing coordinate (x,8) (4,1) x=5 but when I try to use the slope formula I am making a mistake somewhere. Please explain the steps you took to solve this problem. Click here to see answer by stanbon(57246)

 Question 178979: Find the slope and y-intercept 3x+2y=6 can you explain how y=-3/2 (I keep getting y=3/2) where am I going wrong? Click here to see answer by solver91311(16868)

 Question 178994: write an equation in point slope form and standard form of the line that passes through the given points: (-5,2),(-4,3) Click here to see answer by jim_thompson5910(28504)

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