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

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 Question 662513: -x+3y=4 x-3y=3 what is the elimination method to solve these two problems Click here to see answer by solver91311(18785)

 Question 662525: write the standard form of the equation of the line through the pair of points (2,-8) (-7,5) Click here to see answer by MathLover1(7480)

 Question 662522: What is an equation of the line, in point-slope form, that passes through the given point and has the given slope? point: (8, –8); slope: 3 Click here to see answer by rfer(13569)

 Question 662256: Im trying to help my sister with her hw yet i dont kno how to do this, would someone help me so i could teach her Milk Problem: Handy Andy sells one-gallon cartons of milk (4 quarts) for \$3.09 each and half-gallon cartons for \$1.65 each. Assume that the number of cents you pay for a carton of milk varies linearly with the number of quarts the carton holds. a) Write the particular equation expressing price in terms of quarts. b) If Handy Andy sold 3-gallon cartons, what would your equation predict the price to be? c) The actual prices for pint cartons (1/2 quart) and one-quart cartons are \$.57 and \$.99, respectively. Do these prices fit your mathematical model? If not, are they higher than predicted or lower? d) Suppose that you found cartons of milk marked at \$3.45, but that there was nothing on the carton to tell what size it is. According to your model, how much would such a carton hold? e) What doe the price-intercept represent in the real world? f) What are the units of the slope? What real-world quantity does this number represent? g) Sketch and label the graph. Click here to see answer by mari_hernandez(1)

 Question 662600: use the method of elimination to solve the system of linear equations. 3a = 7 - b 3a = 5 - b choose one: A. there is one solution , the solution is ___. B. there are infinitely many solutions. C. there are no solutions. Thanks! Click here to see answer by MathLover1(7480)

 Question 662554: Graph the lines containing the point P=(-2,-3) and slope m(-2) Click here to see answer by MathLover1(7480)

 Question 662596: use the elimination method to solve the system of equations. a + 6b = 6 a + 4b = 2 Click here to see answer by MathLover1(7480)

 Question 662601: use the method of elimination to solve the system of linear equations. 3x - y = 3 7x - 2y = 8 the solution is___. (type an ordered pair) Thanks! Click here to see answer by mananth(13127)

 Question 662676: Find the equation of a line perpendicular to the given line that passes through the point (1,-2) Write the new equation in Standard Form. Click here to see answer by radh(108)

 Question 662747: 3x+4y=4 -8+6y=0 Give the slope of each line and then determine whether the two line parallel, perpendicular,or neither Click here to see answer by MathLover1(7480)

 Question 662763: what is the slope and y-intercept of y-1=(-2/3)x Click here to see answer by MathLover1(7480)

 Question 662787: Find a general form of an equation for the perpendicular bisector of the segment AB. A(8, 4), B(−4, 14) Click here to see answer by ewatrrr(11167)

 Question 662835: How do I graph the linear equation: x+y=4 Click here to see answer by MathLover1(7480)

 Question 662971: y=-3x-3 then they give you a x and y box. under the x box you have -2 and y is blank , then x is blank and y is 0 and then x is -4 and y is blank. i did some f the work already but i am not sure if i am doing it right , not sure if i should type on here already what i tried? Click here to see answer by Alan3354(34677)

 Question 663241: 14. Find the value of y for a given value of x, if y varies directly with x. If y = –252 when x = 84, what is y when x = 74? Click here to see answer by MathLover1(7480)

 Question 663261: What is the slope of a line that passes through the points (9, 81) and (6, 36)? Click here to see answer by jim_thompson5910(29613)

 Question 663383: Well, actully its pre-algebra, but anyways. x/4 - 15/1 = -7 How do I do this? My teacher tries to explain, but it doesnt help at all, I don't understand. Click here to see answer by Alan3354(34677)
 Question 663383: Well, actully its pre-algebra, but anyways. x/4 - 15/1 = -7 How do I do this? My teacher tries to explain, but it doesnt help at all, I don't understand. Click here to see answer by ReadingBoosters(3246)

 Question 663420: Ice forms at a temperature of 0 celsius, which corresponds to a temperature of 32F . A temperature of 100C corresponds to a temperature of 212F write a line equation that gives the number y of degrees fahrenheit in terms of the number x of degrees celsius just not sure what I need to do to solve this. In Geometry and Algebra 2 at the same time so still learning some things. Thanks for the help! Click here to see answer by MathLover1(7480)
 Question 663420: Ice forms at a temperature of 0 celsius, which corresponds to a temperature of 32F . A temperature of 100C corresponds to a temperature of 212F write a line equation that gives the number y of degrees fahrenheit in terms of the number x of degrees celsius just not sure what I need to do to solve this. In Geometry and Algebra 2 at the same time so still learning some things. Thanks for the help! Click here to see answer by ewatrrr(11167)

 Question 663429: I'm in a pre-algebra class and we're working on solving linear equations with fractions and I'm not understanding it. 4/6 = x+8/15 how do I solve this? Please help, thank you. Click here to see answer by ReadingBoosters(3246)

 Question 663489: parallel to 2x + 4y = 5, passing through (1,2) Click here to see answer by MathLover1(7480)

 Question 663519: how do you find the ordered pairs of x + 5y= 5 Click here to see answer by stanbon(60771)

 Question 663629: What is the slope of (-2, 1) and (0, -3) Click here to see answer by mananth(13127)

 Question 663707: what is the shap of the graph of the function y=x-2x^2 Click here to see answer by ewatrrr(11167)

 Question 663736: Given: 1/3(one third)x + y = 15. Which of the following are ordered pairs of this equation? A.{(-3, 14),(0, 15),(3, 16)} B.{(-3, 16),(0, 15),(3, 14)} C.{(16, -3),(15, 0),(14, 3)} Click here to see answer by ReadingBoosters(3246)

 Question 663734: Given: x + y = 15. Which of the following are ordered pairs of this equation? A.{(-3, 14),(0, 15),(3, 16)} B.{(-3, 16),(0, 15),(3, 14)} C.{(16, -3),(15, 0),(14, 3)} Click here to see answer by ReadingBoosters(3246)

 Question 663802: Which of the following ordered pairs is the solution to the system of linear equations? x plus y equals fourteen, Two x plus y equals twenty-four (7, 7) (3, 11) (6, 12) (10, 4) Click here to see answer by MathLover1(7480)
 Question 663802: Which of the following ordered pairs is the solution to the system of linear equations? x plus y equals fourteen, Two x plus y equals twenty-four (7, 7) (3, 11) (6, 12) (10, 4) Click here to see answer by solver91311(18785)

 Question 663838: Find the slope-intercept equation of the line that has the given characteristics slope=0 and y-intercept (0,4). I have no idea how to even begin to solve this other than the fact that the slop-intercept form is y=mx+b. Can anyone please help? Click here to see answer by lwsshak3(7678)

 Question 663897: Find the X-intercept and the Y-intercept of the graph of 3y= 2x-6 How do I find these out? Click here to see answer by Theo(3556)
 Question 663897: Find the X-intercept and the Y-intercept of the graph of 3y= 2x-6 How do I find these out? Click here to see answer by Alan3354(34677)

 Question 664024: Rewrite y = x2 + 14x + 29 in general form. Please show how? Click here to see answer by MathLover1(7480)