# 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 113006: I am trying to write an equation in slope-intercept form. I know how to find the slope if I am given 2 points, but once I have the slope, I don't know how to find the y intercept. I am using a this form (((y=mx+b))) How do I find b? Click here to see answer by Earlsdon(6287)

 Question 112876: Write the equation of the line passing through each of the given pairs of points. Write your result in slope-intercept form, where possible. (-1, 3) and (4,-2) Thanks alot, I am not not understanding the concept of slopes and intercepts fully yet. Click here to see answer by ankor@dixie-net.com(15624)

 Question 112786: An art dealer sold two art works for \$1520 thereby making a profit of 25% on the first work and 10% profit on the other,whereas if he had approached any exhibition he would have sold them together for \$1535 with a profit of 10% on the first and 25% on the other artwork. Find the actual cost of each artwork. Click here to see answer by ankor@dixie-net.com(15624)

 Question 113170: points 60, \$1635 120, \$1770 I got a slope of 2.25 My intercept is 1,500. Not sure if this is right. Let x represent packages and y cost. What is the cost to send 200? What would my equation look like? Thanks Click here to see answer by stanbon(57219)

 Question 113203: I need help on the following questions:I am having a hard time with finding slopes and writing the following equations. I would really appreciate your help,thank you in advance. 1.Find the slope of the line passing through the points (-3,1) and (-6,10) 2. Write the equation of the line with slope -5 and y intercept (0,5) 3. Write the equation of the line with x-intercept (-1,0) and undefined slope Click here to see answer by solver91311(16868)

 Question 113158: Write the equation of the line passing through (–3, –5) and (3, 0). Click here to see answer by jim_thompson5910(28476)

 Question 113273: The length of one of the equal legs of an isosceles triangle is 8cm less than the length of the base. If the perimeter is 29cm, find the length of one of the equal legs. What I have so far is this, 4x+(2x-8)=29cm. Thank you for you help, Barb Neely Click here to see answer by jim_thompson5910(28476)
 Question 113273: The length of one of the equal legs of an isosceles triangle is 8cm less than the length of the base. If the perimeter is 29cm, find the length of one of the equal legs. What I have so far is this, 4x+(2x-8)=29cm. Thank you for you help, Barb Neely Click here to see answer by Earlsdon(6287)
 Question 113273: The length of one of the equal legs of an isosceles triangle is 8cm less than the length of the base. If the perimeter is 29cm, find the length of one of the equal legs. What I have so far is this, 4x+(2x-8)=29cm. Thank you for you help, Barb Neely Click here to see answer by solver91311(16868)

 Question 113350: The length of a rectangle is 3 inches more than the width. The perimeter of the rectangle is 24 inches......How do I solve this??? HELP!! Click here to see answer by checkley71(8403)

 Question 113475: Find the slope and the y-intercept of the line whose equation is –3x + y = -5. Find an equation of the line through the given points. Write the equation in standard form. Through (6,2) and (8,8). Click here to see answer by moou_b(3)

 Question 113497: Find the slope of the line through (3,-4) and (1,2). Click here to see answer by MathLover1(6614)

 Question 113474: In which quadrant does the following point lie? (-3 , 5) Find the slope of the line through (3,-4) and (1,2) Click here to see answer by checkley71(8403)

 Question 113488: Find the equation in standard form. with all integer coefficients, of the line perpendicular to 3x - 6y and passing through (-2,-1). Click here to see answer by MathLover1(6614)

 Question 113424: Solve the system by addition. 5x – 3y = 13 4x – 3y = 11 Click here to see answer by scott8148(6628)

 Question 113423: Solve the system by addition. 5x – 3y = 13 4x – 3y = 11 Click here to see answer by scott8148(6628)

 Question 113417: A line passing through (6, 9) and (5, y) is parallel to a line with a slope of 5. What is the value of y? Click here to see answer by scott8148(6628)

 Question 113428: Write the equation of the line passing through (2, -1) and (3, -1). Thank you for the help. Click here to see answer by scott8148(6628)
 Question 113428: Write the equation of the line passing through (2, -1) and (3, -1). Thank you for the help. Click here to see answer by MathLover1(6614)

 Question 113421: Solve the system by graphing 3x + y = 6 3x – y = 0 Click here to see answer by Fombitz(13828)

 Question 113545: I am not remembering how to do this type of problem. Graph y = -x - 2. Click here to see answer by jim_thompson5910(28476)

 Question 113463: Please help me write an equation of the line: 1. The slope is 2; the y-intercept is 3. 2. The slope is -3; the y-intercept is -2. Please send an example to write an equation of the line shown in a graph. This is Algebra 1, 5.1 Practice B resource book, McDougal Littell Inc. Page 14. Click here to see answer by elima(1433)

 Question 113587: Please help. Find values for m and b in the following system so that the solution to the system is (-3, 4). 5x = 7y =b mx + y = 22 Thanks JMS Click here to see answer by MathLover1(6614)

 Question 113360: The length of a rectangle is 4 less than 3 times the width. If the perimeter is 40, find the dimensions of the rectangle. I really need help!! Click here to see answer by ankor@dixie-net.com(15624)

 Question 113548: complete the ordered pairs for the equation y = 7x + 7 (__, 0), (6/7, __), (0, __), (-6/7, __) Click here to see answer by checkley71(8403)

 Question 113546: Graph using the intercept method: 2x + y = 4 Click here to see answer by checkley71(8403)

 Question 113697: A large pizza costs \$15 plus \$1.25 for every extra topping. What is the cost of a large pizza with three toppings? Write a function table for this problem. Click here to see answer by josmiceli(9649)

 Question 113675: Please help. Solve each of the following systems by addition. If a unique solution does not exist, state whether the system is inconsistent or dependent. 2x + 3y = 1 5x + 3y = 16 Thanks JMS Click here to see answer by Adam(64)

 Question 113798: how can you write y = -2x in standar form and how would you graph it? Thanks! Click here to see answer by stanbon(57219)

 Question 113838: I am having trouble with linear equations by elimination. x + y = 9 x + 4y = 15 I need to find x and y Thank you very much Click here to see answer by jim_thompson5910(28476)