# 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 623143: What is linear equation in 2 variables? Is 2x – 3/y = 7 a linear equation in 2 variables? Why, and why not? Click here to see answer by fcabanski(872)

 Question 623157: Write the slope for a graph with a line going from 8 to 0 to -8... I really need someone to help me this is all new to me and I dont understand slopes at all. Your help will be greatly appreciated...please HELP I am so lost right!! Thank you for your time and patience. Click here to see answer by fcabanski(872)

 Question 623158: Find the y coordinate of the points (-1), (2), (3) =-x-4 it also wants me to graph this if I can figure out the first part of this surely I can graph it??? I dont understand what this problem even means to attempt working it...Someone please help me make since of this. Thank you very much for taking time to help a lost soul...Thanks Click here to see answer by fcabanski(872)

 Question 623252: What is the equation of the line passing through the two points (-20,9) and (-15,4)? Click here to see answer by jim_thompson5910(28476)

 Question 623254: For the straight line defined by the points (4, 53) and (6, 87), determine the slope and y-intercept. M= ? (slope) b= ? (y-intercept) Click here to see answer by lwsshak3(6463)

 Question 623259: Ethan has a 20-ft piece of rope that he will cut into two pieces. One piece will be one-fourth the length of the other piece. Find the lengh of each piece. Click here to see answer by ewatrrr(10682)
 Question 623259: Ethan has a 20-ft piece of rope that he will cut into two pieces. One piece will be one-fourth the length of the other piece. Find the lengh of each piece. Click here to see answer by lwsshak3(6463)

 Question 623263: A certain mountain has an elevation of 19,459 feet. In 1915, the glacier on this peak covered 10 acres. By 2004 this glacier melted to only 1 acre. Assume that this glacier melted at a constant rate each year. Find this yearly rate. Click here to see answer by Theo(3458)

 Question 623268: A certain region is losing about 29 million acres of rain forest each year. (a)Find a linear function f that calculates the change in acres of rain forest in millions x years. (b)find f(9)and interpret the result Click here to see answer by smmoore(10)

 Question 623267: Find the slope-intercept form for the line satisfying the following conditions. x-intercept 2, y-intercept 1/3 The slope-intercept form for the line is? Click here to see answer by lwsshak3(6463)

 Question 623279: a cookie recipe uses twice as much flour as sugar. If the total amount of these ingredients is 2 1/4 cups,how much sugar and how much flour are in these cookies? Click here to see answer by richwmiller(9135)

 Question 623282: The sale price of a coffeemaker is \$40.08. This is 40% off the original price. What was the original price of the coffeemaker? Click here to see answer by richwmiller(9135)
 Question 623282: The sale price of a coffeemaker is \$40.08. This is 40% off the original price. What was the original price of the coffeemaker? Click here to see answer by math-vortex(472)

 Question 623278: Five times the sum of two consecutive integers is two more than three times the larger integer. find the integers. Click here to see answer by nerdybill(6948)

 Question 623548: please help me with this equation: graph the following equation, make a solution set table with at least 3 solutions, find the x intercept and y intercept and slope of -2x+y=2 Click here to see answer by solver91311(16868)
 Question 623548: please help me with this equation: graph the following equation, make a solution set table with at least 3 solutions, find the x intercept and y intercept and slope of -2x+y=2 Click here to see answer by lenny460(754)

 Question 623642: Indicate in standard form the equation of the line passing through the given points M(0, 6), N(6, 0) Click here to see answer by Alan3354(30959)

 Question 623756: find the slope-intercept form for the line satisfying the following conditions. x-intercept 2, y-intercept 2/5 Click here to see answer by solver91311(16868)

 Question 623760: The sum of three consecutive even integers is 6 more than 264. What are the integers. This is what i have so far, but i'm getting the wrong answer; i'm not getting the right answer, and i'm not sure what i did wrong. Please help and your answer will be appreciated. x+x+2+x+4=270 3x+6=270. Click here to see answer by Alan3354(30959)
 Question 623760: The sum of three consecutive even integers is 6 more than 264. What are the integers. This is what i have so far, but i'm getting the wrong answer; i'm not getting the right answer, and i'm not sure what i did wrong. Please help and your answer will be appreciated. x+x+2+x+4=270 3x+6=270. Click here to see answer by solver91311(16868)

 Question 623858: Find an equation of the line parallel to the line with equation 4x - 2y = 8 and which passes through the point (2, -3) Click here to see answer by lwsshak3(6463)

 Question 623892: If you have a graph with a line going from -8 straight across with the next point on 0 and the third point on 8 how would you write an equation for this line???? I hope someone can help me with this I just dont get it....Thank you for any help you can give me. Click here to see answer by solver91311(16868)

 Question 624117: what is the slope of the line that contains the points (0,3) and (8,-3) Click here to see answer by lenny460(754)

 Question 624332: The cost of driving a car includes both fixed costs and mileage costs. Assume that it costs \$160.50 per month for insurance and car payments and \$0.22 per mile for gasoline, oil, and routine maintenance. (a) Find values for m and b so that y = mx + b models the monthly cost of driving the car x miles. (b) What does the value of b represent? (a) m = b = Click here to see answer by solver91311(16868)

 Question 624391: select the set of equations that represent the following situation. Mary invested one amount at 10% simple interest, and a second amount at 3% interest, earning \$21.72 in one year. If she had switched the amounts, she would have earned \$15.07. What were the two amounts. Click here to see answer by josmiceli(9649)

 Question 624483: What is the slope of the line passing through the points b–1, – 4g and b– 7, – 4g? Click here to see answer by ewatrrr(10682)

 Question 624398: Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this. -3x+4y=1 -6x+6y=-3 Click here to see answer by Theo(3458)

 Question 624402: Solve using the substitution method. Show your work. If the system has no solution or an infinite number of solutions, state this. -x-3y=.20 5x+3y=40 Click here to see answer by math-vortex(472)

 Question 624534: Write an equation in point-slope form for the line through the given point with the given slope: (-10, 9) and m = -2 Click here to see answer by jim_thompson5910(28476)