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 515701: It would be very much appreciated if someone could help me with this, I'm so confused...thank you so much in advance! Write the slope-intercept equation for the line that passes through (-7,-1) and has slope -6/7. Please show all your work Click here to see answer by Alan3354(30993)

 Question 515785: Solve this problem through substitution: x + y = 6 x - y = -2 Click here to see answer by Maths68(1474)

 Question 515775: Can you solve these problems by substitution? 1.) x + 2y = -1 4x - 5y = 22 2.) -3x + 7y = 14 2x - y = -13 Click here to see answer by Maths68(1474)

 Question 515820: Graph the equation using the slope and the y-intercept y=1/5x+4 Click here to see answer by drumwrrv(7)

 Question 515873: Please answer, i am confused (show work) A line passes through points (-5,2) and (2,y) has a slope of 3. Find y. Click here to see answer by Alan3354(30993)

 Question 515847: write an equation to model the following situation. an amusement park charges \$7.00 admission and \$1.50 per ride Click here to see answer by nerdybill(6962)

 Question 515888: What does y= in the slope intercept form of the linear equation containing the given pair of points (-1,-3) and (-9,-5) Click here to see answer by rfer(12670)

 Question 516064: 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 (8,9); x+2y=7 Click here to see answer by mananth(12270)

 Question 516083: Determine if (-5/2,1) is a solution to -2x + 3y = 2 Please show all work Click here to see answer by rfer(12670)

 Question 516144: y=2x find four solutions for equations, write the solutions as ordered pairs. Click here to see answer by jim_thompson5910(28598)

 Question 516231: How would you do this problem. Write an equation of a line tha is perpendicular to y = 2x + 3 and passes through (3,4). Click here to see answer by gc2000(22)

 Question 516311: what is the equation of the line that contains the point (-1,-2) and is perpendicular to the line determined by 2x-3y=6? Click here to see answer by mananth(12270)

 Question 516363: write an equation in slope-intercept form for a line that passes through the given point and is parallel to the given line y=5x;(2,-1) Click here to see answer by Maths68(1474)

 Question 516377: Not sure how to find the slope of the line joining (3, 12) and (15, -2)as a fraction in the simplest form. Click here to see answer by Maths68(1474)

 Question 516569: solve using the elimination method. show your work if the system has no solution or an infinite number of solution state this 2x+3y=8 4x+6y=16 Click here to see answer by solver91311(16897)

 Question 516687: Find the slope and the y-intercept of the line 8x=7y+56 Click here to see answer by rfer(12670)

 Question 516710: what is the slope of a line parallel to the line whose equation is 3x+5y=8 Click here to see answer by mananth(12270)

 Question 516759: How do you write and solve equations in slope-intercept form for the line that satisfies the following condition: Passes through (6,11) and is parallel to the line that passes through (2,4) and (23,23) ? Click here to see answer by mananth(12270)

 Question 516823: what is (-1,-2) perpendicular to 2x + 3y = 0 Click here to see answer by Maths68(1474)

 Question 516793: Given the coordinates of point F as (5,50), find the equation of the line connecting points F and B. Click here to see answer by richard1234(5390)

 Question 517069: Describe how you would graph this line using the slope-intercept method. Be sure to write in complete sentences. The slope is -2/3 The y intercept is -2 I am not for sure how to graph this can yo help me? Click here to see answer by Alan3354(30993)

 Question 517077: What can you conclude about the weight of someone who has consumed about 4 drinks in 1 hour without reaching BAC of 0.08%? His weight is 200 pounds. Click here to see answer by Alan3354(30993)

 Question 517230: Write and equation of the line that passes through each pair of points. (-5/4,1) (-1/4,3/4) Click here to see answer by stanbon(57387)

 Question 517227: You have two tanks used to store water. A 50 gallon tank is empty and then is filled at a rate of 2 gallons per minute. At the exact same time, a 140 gallon tank starts out completely full and is being emptied at a rate of 5 gallons a minute. When will both tanks contain the same amount? I do not know how to even set this problem up. dillonlisa67@yahoo.com Thank you so very much! Click here to see answer by Edwin McCravy(8909)

 Question 517450: (2,3) and (0,-7} equation y= How do I solve this problem? Click here to see answer by richwmiller(9143)

 Question 517597: I need help soving this problem, thanks. Your company would like to know how sales levels affect profits. If too few items are sold, then there is a loss. Even if too many items are sold, however, the company can lose money (likely because of low pricing). It is good to know how many items can be sold for there to be profit. Functions are very useful in many areas, such as in business to find the profit an organization is making. For example, the following function expresses profit in terms of the number of phones sold by a particular company: P(x) = –x2 + 110x – 1,000 This function can be used to compute the profit (in thousands of dollars) from producing and selling a certain number, x, of thousands of smartphones. a. Compute the following: P(5), P(50), and P(120). Then, interpret the results. b. Graph the function using the desired graphing program. Paste the graph that you create into your assignment. c. Discuss and interpret the meaning where the profit function crosses the x-axis. Refer to last week’s assignment concerning break-even points, and interpret the graph. Also, discuss where the graph is above and below the x-axis, explaining what that means in terms of profitability. Click here to see answer by solver91311(16897)

 Question 517642: find the x and y intercept and graph the equation plotting the intercepts. please show all work. -5x+8y=-40 Click here to see answer by lwsshak3(6522)

 Question 517638: write the slope intercept equation for the line that passes through (6,-9)and has slope -7/6. Click here to see answer by lwsshak3(6522)

 Question 517625: Find an equation for the line through the point (−7,6) with x intercept 3. How do i do this problem? Click here to see answer by lwsshak3(6522)

 Question 517702: find the equation of line which is perpendicular to line y=5x+9 and has y-intercept=6 Click here to see answer by gc2000(22)

 Question 517759: I have two kids i need to get to school.Both start at 7:50. One takes the bus the other I drive to school. I need to take the first one early so i can make it back to my second to catch the bus on time by 7:30 Click here to see answer by richwmiller(9143)

 Question 517921: Find the equation of the line with the given properties. slope= 2/3, y-intercept of 9 Click here to see answer by Alan3354(30993)
 Question 517921: Find the equation of the line with the given properties. slope= 2/3, y-intercept of 9 Click here to see answer by solver91311(16897)