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

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 Question 457230: what is the slope of (2,7);(8,1)? my work.. 2-8=6, 7-1=5 ..so 6/5?.. Click here to see answer by algebrahouse.com(1283)

 Question 457279: For the given function, determine which of the given viewing windows will show both intercepts. f(x)= (-15)x+4500 A [-500,0,-5000,0] B [-5000,0,-500,0] C [0,5000,0,500] D [0,500,0,5000] Click here to see answer by nerdybill(7090)

 Question 457312: Okay. My question is... write an equation of the line satisfying the given conditions in standard form, Ax + By = C. m = -3/4 and contains (5,-2) Click here to see answer by nerdybill(7090)

 Question 457333: Are these lines parallel, perpendicular, or neither? 3x + 2y= 10 2x + 3y= 4 Click here to see answer by Alan3354(34677)

 Question 457154: An object launched upward with an initial velocity of 4.9 m/s from a height of 9.8 m will have a height of S(t)=-4.9t^2+4.9t+9.8, where S is in meters and t is in seconds. a)how long will it take it to hit the ground? b)Find the interval on which the height of the object is greater than 2.8m. Click here to see answer by ankor@dixie-net.com(16524)

 Question 457502: Given the linear equation y = -2x - 4 find the y - coordinates of the points(0, ),(-1, ),and (2, ).Please show all work. Click here to see answer by rfer(13569)

 Question 457529: I need to learn how to graph an equation using the slope and the y-intercept with an fraction in the equation, example y=9/7X+6 Click here to see answer by mananth(13127)

 Question 457533: I need help finding out how to solve this linear equation: 2 2/3x=-6 5/6 I am trying to solve for x. Click here to see answer by mananth(13127)

 Question 457465: The point (0, -3.5) lies on the line 11x – 6y = 21. Determine if this point is a solution of the system 11x – 6y = 21 9x + 8y = 43 Click here to see answer by Alan3354(34677)

 Question 457603: Which of the following is the equation of a line perpendicular to 9y = 3x + 5 that passes through (-2,3)? y = -3x - 3 3y - 6x = 10 y - 3x = -3 y = -3x - 6 I really don't understand this. Click here to see answer by nerdybill(7090)
 Question 457603: Which of the following is the equation of a line perpendicular to 9y = 3x + 5 that passes through (-2,3)? y = -3x - 3 3y - 6x = 10 y - 3x = -3 y = -3x - 6 I really don't understand this. Click here to see answer by richwmiller(10280)

 Question 457736: "A line passes through the points listed in the table below. Examine the ordered pairs in the table. What relationship do you notice between the x and y values? Express this relationship by writing an aquation that every point in the table must satisfy." x | y 1 | 5 2 | 4 3 | 3 4 | 2 5 | 1 I know it's a linear equation and there is a different of 1 between each value. I just can't seem to put it in equation form for some reason. Click here to see answer by Edwin McCravy(9717)

 Question 457744: graph the following equation and identify the y-intercept y=x+1 Click here to see answer by MathLover1(7480)

 Question 457765: Please help me ...Find a polynomial of degree 4 with -2 as a zero of multiplicity 2 and 0 and 3 as zeros of multiplicity 1. Click here to see answer by Edwin McCravy(9717)

 Question 457793: I am not getting this could someone please help me...thanks! For the polynomial: x^4-9x^2+4x+12 a)find the rational zeros and then the other zeros; that is, solve f(x)=0 b)Express f(x) as a product of linear factors. Click here to see answer by Alan3354(34677)

 Question 457943: find the slope of a line containing the pair of points (4,10) and (-5,10) Click here to see answer by richwmiller(10280)

 Question 458020: Hello everyone! I realize it is stated only one problem per submission, however, there are two problems I worked on and worked on and worked on. Each time I thought I had finally solved correctly I still ended up wrong on quiz. I have a test reviewing these types of problems (and others) and would like to understand how to do them correctly prior to taking the test. Any help would be so appreciated! PROBLEM #1: Solve the system of equations by graphing. Check your solution. 2x+y=-8 3x-y=3 PROBLEM #2: Solve the system of equations by graphing. Check your solution. y=x+3 x+y= -2/5 Thank you! Click here to see answer by stanbon(60774)
 Question 458020: Hello everyone! I realize it is stated only one problem per submission, however, there are two problems I worked on and worked on and worked on. Each time I thought I had finally solved correctly I still ended up wrong on quiz. I have a test reviewing these types of problems (and others) and would like to understand how to do them correctly prior to taking the test. Any help would be so appreciated! PROBLEM #1: Solve the system of equations by graphing. Check your solution. 2x+y=-8 3x-y=3 PROBLEM #2: Solve the system of equations by graphing. Check your solution. y=x+3 x+y= -2/5 Thank you! Click here to see answer by edjones(7794)
 Question 458020: Hello everyone! I realize it is stated only one problem per submission, however, there are two problems I worked on and worked on and worked on. Each time I thought I had finally solved correctly I still ended up wrong on quiz. I have a test reviewing these types of problems (and others) and would like to understand how to do them correctly prior to taking the test. Any help would be so appreciated! PROBLEM #1: Solve the system of equations by graphing. Check your solution. 2x+y=-8 3x-y=3 PROBLEM #2: Solve the system of equations by graphing. Check your solution. y=x+3 x+y= -2/5 Thank you! Click here to see answer by richwmiller(10280)
 Question 458020: Hello everyone! I realize it is stated only one problem per submission, however, there are two problems I worked on and worked on and worked on. Each time I thought I had finally solved correctly I still ended up wrong on quiz. I have a test reviewing these types of problems (and others) and would like to understand how to do them correctly prior to taking the test. Any help would be so appreciated! PROBLEM #1: Solve the system of equations by graphing. Check your solution. 2x+y=-8 3x-y=3 PROBLEM #2: Solve the system of equations by graphing. Check your solution. y=x+3 x+y= -2/5 Thank you! Click here to see answer by wilft1(204)

 Question 458182: can i get free help online with this? i have finals in like two days! HELP PLEASE! Click here to see answer by richwmiller(10280)

 Question 458213: Write an equation in standard form for the line described. through (7,9), perpendicular to 4x+y=7 Click here to see answer by stanbon(60774)
 Question 458213: Write an equation in standard form for the line described. through (7,9), perpendicular to 4x+y=7 Click here to see answer by lwsshak3(7679)

 Question 458212: Malpractice insurance premiums at Thomas Jefferson University hospital in Philadelphia increased from 8 million in 1998 to 32 million in 2003. Calculate the percent change in malpractice insurance premiums over this 5-year period Click here to see answer by stanbon(60774)

 Question 458272: Find the slope of the line containing the given pair of points.(1, 2) and (9, 12) Click here to see answer by jim_thompson5910(29613)

 Question 458297: Please help with these difficult homework problems: 1. Find the intersection point of the two straight lines: 3x - 4y = 5 and 2x + 3y =1. Answer in lowest terms. 2. In the x-y coordinate system, the equation y = 5 represents (A) A point on the x-axis. (B) A point on the y-axis. (C) A vertical line. (D) A horizontal line. 5. (2 points) Use the Gauss-Jordan elimination method to solve the system. Enter answer in the form (x,y,z). DO NOT use any other method. On the test you will be asked to show all steps. {x + 2y - 3z = -5 {x + 4y - 7z = -13 {x - y + 2z= 1 Click here to see answer by robertb(4012)

 Question 458322: help to solve and show how to solve 2/3(2x-1/6)-3/4=1/4 Click here to see answer by rfer(13569)

 Question 458373: find the equation of the line (in slope-intercept form) passing through each pair of points. a. (-2,5) and (0,2) b. (4,4) and (5,-3) Click here to see answer by josmiceli(10616)

 Question 458436: Given the linear equation y = 3/4x-2, find the y-coordinates of the points (-8, ), (-4, ), and (4, ). Please show all of your work. Plot those points and graph the linear equation. Click here to see answer by richwmiller(10280)
 Question 458436: Given the linear equation y = 3/4x-2, find the y-coordinates of the points (-8, ), (-4, ), and (4, ). Please show all of your work. Plot those points and graph the linear equation. Click here to see answer by MathLover1(7480)

 Question 458474: choose the option that represents the equation of the line that passes through the point (-2,-3) and is perpendicular to the line 10x+2y+3 a 5x-2y=1 b x-5y=-15 c x-3y=17 d x-5y=13 e 5x-y=13/2 f 3x+5y=-13 Click here to see answer by solver91311(18785)

 Question 458606: write a point slope equation for the line with the given slope that contains the given point. m=-1; (-3, 6) Click here to see answer by rfer(13569)