# 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 324939: A contractor mixes concrete from bags of pre-mix for small jobs. How many bags with 7% cement should he mix with 10 bags of 15.5% cement to produce a mix containing 12% cement? Click here to see answer by Fombitz(13828)

 Question 325005: write the standard form of the equation of the circle with the given center (-2,-4) and radius 6. Click here to see answer by Fombitz(13828)

 Question 325008: given the equation of a circle is x^2 + y^2 =100, find the center and the radius. Click here to see answer by Fombitz(13828)

 Question 325004: find the distance beween the pair of points (-2,-6) and (7,-3) Click here to see answer by Fombitz(13828)

 Question 325003: find the distance beween the pair of points (-1, -4) and (-5, -7) Click here to see answer by Fombitz(13828)

 Question 325010: write the slope-intercept form of the equation of line passing through (-2, -1) and parallel to y= x+1. Click here to see answer by Fombitz(13828)

 Question 324970: Find the slope of line that passes through the pair of point (3/5,1/2)and 8/11,3/4) Click here to see answer by Fombitz(13828)

 Question 325013: write the slope-intercept form of the equation of line passing through (-2, 1) and parallel to y= x+1 Click here to see answer by Fombitz(13828)

 Question 325014: find the distance between the pair of points (-2,-6) and (7,-3) Click here to see answer by Fombitz(13828)

 Question 325016: write the slope intercept form of the equation of line passing through (-2, 1) and parallel to y=x+1 Click here to see answer by Fombitz(13828)

 Question 325018: find the midpoint of the line segment with the given end points (2, 1) and (6, 8) Click here to see answer by Fombitz(13828)

 Question 324967: i need to find the slope of line that passes through the pair of points(-1,-10)and(-3,10) Click here to see answer by Fombitz(13828)

 Question 325068: How many solutions exist for the following system of equations? -4x – 6y = -28 2x + 3y = 14 And do you know how to enter these type of equations on a graphing calculator? More specific, a TI-84 Plus? Click here to see answer by rfer(12670)

 Question 325094: 5x + y = 30 x + 6y = 4 How do I solve the above linear equations using the substitution method? Click here to see answer by jim_thompson5910(28598)

 Question 325103: 4x + y = 11 x + 2y = 8 Can some please explain to me how to solve the above linear equation using the substitution method? I got the answers y=3 x=2 I think I did something wrong Click here to see answer by jim_thompson5910(28598)
 Question 325103: 4x + y = 11 x + 2y = 8 Can some please explain to me how to solve the above linear equation using the substitution method? I got the answers y=3 x=2 I think I did something wrong Click here to see answer by mananth(12270)

 Question 325190: This question is along the "Collinear" catagory. How do I determine whether or not the following points are collinear. Please show how you did this. (1,9), (6,3), and (10,0) Click here to see answer by stanbon(57387)

 Question 325210: I am finding an equation of the line having the given slope and containing the given point. I need to express my answer in the form y=b or y=mx+b. The equation of the line is Y=______________ m=0,(0,-8) I came up with Y=0x-8 is this correct? Click here to see answer by jim_thompson5910(28598)

 Question 325208: I am determining whether the graphs of the two equations are perpendicular, 2x2y=5 2x+4y=9 Click here to see answer by stanbon(57387)

 Question 325271: Find the equation of each line. Write the answer in slope-intercept form. The line is parallel to -3x + 2y = 9 and contains the point (-2,1). Click here to see answer by jim_thompson5910(28598)

 Question 325409: How do I graph y = -x? I need to plot 5 points. Click here to see answer by Alan3354(30993)

 Question 325419: My Dad has helped me and we still can't get this last few question, please help me. I dont understand all the question. I want to get all right, not just pass 1) 5x-4y=-18 I would like to know to solve not just answer 2) -x-2y=-10 I think got 2 (-2,-4) (-1,-5) 3) -y=x+1 I just don't get this 4) 2y=3x+11 again I just not get it, Click here to see answer by Earlsdon(6287)

 Question 325425: how to find the slope and y intercept of the equation: 10 - 1/4y = 4x Click here to see answer by Edwin McCravy(8909)

 Question 325421: write an equation of the line containing the given point and parallel to the given line, express your answer in the form y = mx + b: (6, 8); x + 5y = 7 Click here to see answer by Alan3354(30993)

 Question 325621: Find the slope, the x- and y- intercepts a. y=2/3(x-6) b. 21x-8y=42 Click here to see answer by JBarnum(2044)

 Question 325733: find the points of intersection of the circle x^2+y^2-x-3y-0 and the line y=x-1 Click here to see answer by solver91311(16897)

 Question 325709: Gewn brought a new toyota corolla the selling price plus the 8% state sales tax was \$15,714 what was the selling price. Click here to see answer by nerdybill(6962)

 Question 325706: consecutive even integers find the four consecutive even integers whose's sum is 340 Click here to see answer by Alan3354(30993)

 Question 325707: After getting a 15% discount on the price of a new chrysler sebring convertible, Helen paid \$27,000. what was the original price of the converible to the nearest dollar. Click here to see answer by rfer(12670)

 Question 325768: Find the equation of a line which passes through point (-7, 1) and is parallel to the line formed by the equation y = 6x + 8. Express it in slope-intercept form. Click here to see answer by solver91311(16897)

 Question 325705: Gwen sold her car on cosignment for x dollars. the saleswomen's commission was 10% of the selling price and Gwen recived 6570. Click here to see answer by rfer(12670)

 Question 325778: DIRECTIONS: Write the standard form of the equation through the point with the given slope. INFORMATION: (2,3), slope = undefined PROBLEM: I know I need to find the slope-intercept form of the equation first, in order to find the standard form, but how do I do that if the slope is undefined? Please help. Thank you. Click here to see answer by solver91311(16897)

 Question 325817: Determine the slope, and y-intercept of the following equation 2x + 3y = 5 Click here to see answer by solver91311(16897)

 Question 325850: whats the slope of the line containing the points (12,-9) and (-1,-9)? whats the slope of the line containing the points (3,7) and (-2,-7)? Click here to see answer by solver91311(16897)

 Question 325829: How can you determine if two lines are perpendicular? Click here to see answer by Fombitz(13828)

 Question 325878: How do I Solve the following using elimination method? I get lost when I try. Thanks 4x-2y=16 5x+7y=1 Click here to see answer by Fombitz(13828)

 Question 325875: How do I Solve the following using substitution method? I get lost when I try. Thanks 3x+y=5 x-2y=4 Click here to see answer by Apathious(24)

 Question 325893: How do I Solve the following using elimination method? I get lost when I try. The whole method confesses me I don't know where to start. Math is my weakness 4x-2y=16 5x+7y=1 Click here to see answer by mananth(12270)
 Question 325893: How do I Solve the following using elimination method? I get lost when I try. The whole method confesses me I don't know where to start. Math is my weakness 4x-2y=16 5x+7y=1 Click here to see answer by Apathious(24)