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

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 Question 29392: Write the equation of the line passing through the point and perpendicular to the given line. (5, 2), y=-1/2x +4 and (6, 0), y=-2x+7 Click here to see answer by Nate(3500)

 Question 29450: my son needs help with these also 7n+14-9n=26 5x=4=x-4 Click here to see answer by Bb(19)

 Question 29431: I do not understand why I have developed such a mental block with these type of problems. Can anyone help? Is there an "easy" way to figure them out? Use the given conditions to write an equation for the line in slope-intercept form. Passing through (2,2) and perpendicular to the line whose equation is y=1/8x + 3. Passing through (4,3) and parrallel to the line whose equation is y = -1/6x + 4 Click here to see answer by Earlsdon(6294)

 Question 29444: can you please give me an example of how to work this problem for my son. 4/15y + 16=0 Click here to see answer by longjonsilver(2297)

 Question 29467: Solv for x: 2(x+1)>12 Click here to see answer by annieherch(1)

 Question 29527: 3^(x+3)=5^x thank you Click here to see answer by stanbon(60771)

 Question 29581: I cannot figure this out. Anyone - please help me? 2x -4x = 8 2x - y = 1 Click here to see answer by sdmmadam@yahoo.com(530)

 Question 29584: Write an equation for the line in slope-intercept form. Passing through (4,3)and parrallel to the line whose equation is y = -1/6x + 4. Click here to see answer by sdmmadam@yahoo.com(530)

 Question 29684: Compare equations with one variable to equations with two variables. how are they alike? how are they different? Click here to see answer by josmiceli(10616)

 Question 29755: I'm trying to figure this equation out. Solving using the elimination method. I need to identify the solution. 3x-6y equals 0 and 2x+4y=5. I am so stuck and confused on two or more elimination methods. Either it's my instructor or I'm trying to decide which to eliminate first. The y, x or z first? Click here to see answer by sdmmadam@yahoo.com(530)

 Question 29773: Find f(2) given f(x)= -4x^2+3x=29 Click here to see answer by Cintchr(481)
 Question 29773: Find f(2) given f(x)= -4x^2+3x=29 Click here to see answer by sdmmadam@yahoo.com(530)

 Question 29785: compare equations with one variables to equations with two variables equations. how are they alike? how are they different? what if an equation had three unknown variables? you would need 3 equations in order to solve them. Click here to see answer by venugopalramana(3286)

 Question 29807: I need help to solve this problem. x-8>6. Then I need to graph my solution on a number line. Click here to see answer by longjonsilver(2297)
 Question 29807: I need help to solve this problem. x-8>6. Then I need to graph my solution on a number line. Click here to see answer by sdmmadam@yahoo.com(530)

 Question 29808: Good evening,please could you help me to solve these problems Find the value of X so that the line passing through (x,1) and (3,-x)has slope 5. Another one about the "Age" Six years ago Anita was P times as old as Ben was. If Anita is now 17 years old, how is Ben now in terms of P? Please!!!!!! help me. your faithfully student (Modi21) Click here to see answer by stanbon(60771)
 Question 29808: Good evening,please could you help me to solve these problems Find the value of X so that the line passing through (x,1) and (3,-x)has slope 5. Another one about the "Age" Six years ago Anita was P times as old as Ben was. If Anita is now 17 years old, how is Ben now in terms of P? Please!!!!!! help me. your faithfully student (Modi21) Click here to see answer by sdmmadam@yahoo.com(530)

 Question 29585: Find the point-slope form of the line satisfying the given conditions and use this to write the slope-intercept form of the equation. Passing through (3, -6) and (-3, 2) Click here to see answer by Cintchr(481)

 Question 29848: My son brought home a math problem from his 5th grade math class. There is no explanation on the page and he claims he's never seen it before. The problem is as follows---> 3:15::60:_____ I have searched to understand what the colons and double-colon signify but cannot locate the use. Is this to infer a sequence that he is supposed to finish? If so, what is the significance between the single and double colon. Click here to see answer by Cintchr(481)
 Question 29848: My son brought home a math problem from his 5th grade math class. There is no explanation on the page and he claims he's never seen it before. The problem is as follows---> 3:15::60:_____ I have searched to understand what the colons and double-colon signify but cannot locate the use. Is this to infer a sequence that he is supposed to finish? If so, what is the significance between the single and double colon. Click here to see answer by longjonsilver(2297)

 Question 29924: My professor gave us this problem and he told us to answer it in ax+by=c form. We have never answered any of our exquations in that form so I am really confused. Can you help, Please!! Problem: Find the equation of a line and express it in the form of ax+by=c X+3y=7 4X+12y=-9 Thanks!!!!! Sarah Click here to see answer by Cintchr(481)

 Question 30018: R=CVL/M I am solving for L Click here to see answer by sdmmadam@yahoo.com(530)

 Question 30042: When x number of units are sold,the price of each unit(in dollars)is given by p=-x/2+75.Find the unit price when the following quantities are sold:2,7,9,11. Click here to see answer by sdmmadam@yahoo.com(530)

 Question 29944: I don't understand this problem. Could you please help! Find the equation of each line and express in the form ax+by=c Problem: Line passes through (-5, -1) and is perpendicular to -1/3X-Y=2 Thanks SO MUCH!! Click here to see answer by longjonsilver(2297)

 Question 30153: how do you solve 4x+17/11=3? Click here to see answer by checkley71(8403)

 Question 30191: Find the slope of any perpendicular to the line through points (0,5) and (-3,-4) Click here to see answer by Cintchr(481)
 Question 30191: Find the slope of any perpendicular to the line through points (0,5) and (-3,-4) Click here to see answer by Fermat(127)

 Question 30202: I would appreciate any help to the following problem #25. Determine whether each pair of lines is parallel, perpendicular, or neither. x + y = 5 x - y = 1 Thank you. Click here to see answer by longjonsilver(2297)

 Question 30233: graph the step function y=f(x)=[x] for -3 evaluate [pie symbol] solve each system by substitution -2x+3y=17 3x-y=-8 Click here to see answer by hawaiimath(1)

 Question 30420: 6x-7=x-5 Click here to see answer by checkley71(8403)

 Question 30422: your bank balance is \$987.27 .If you write a check to buy a pair of shoes ,your balance would be \$967.63.How much do the shoes cost? Write a linear equation that models the problem. Click here to see answer by checkley71(8403)

 Question 30433: is the graphing method of solving equations when u figure out the x and y intercept then the slope and graph?? if thats not how you do it then how do you do it?? Click here to see answer by longjonsilver(2297)

 Question 30521: Solve for g (distance traveled by a falling object) s=1/2gt^2 Click here to see answer by checkley71(8403)

 Question 30532: can you please tell me if i got this problem right? 2[5-3(7-4x)]+6x= -5(2-x)-(-3x-5) 10-6(7-4x)+6x= -10+5x+3x+5 70-40x-42+24x+6x= -10+5x+3x+5 28-10x= -5+8x 28+10x= -5+8x+10x 28= -5+18x 28+5= 5+18x 33/18=18x/18 x=11/6 Click here to see answer by ikdeep(226)
 Question 30532: can you please tell me if i got this problem right? 2[5-3(7-4x)]+6x= -5(2-x)-(-3x-5) 10-6(7-4x)+6x= -10+5x+3x+5 70-40x-42+24x+6x= -10+5x+3x+5 28-10x= -5+8x 28+10x= -5+8x+10x 28= -5+18x 28+5= 5+18x 33/18=18x/18 x=11/6 Click here to see answer by cbarkerna(1)

 Question 30517: I am doing Linear Programming and need help with finding the vertecies so i can find the odjective functions. This is what my problem looks like: Find the Maximum and minimum values if they exist of C=3x+4y for each set of constrainst. -and these are all greater than or equal to signs or a less than or egual to sign. Thank You very much. Click here to see answer by venugopalramana(3286)

 Question 30535: A bus has its maximum number of passengers when it leaves the bus station. At the first stop, half of the passengers get off. At the next stop 7 people get on and at the next stop 16 people get off. There are now 17 people on the bus. Click here to see answer by longjonsilver(2297)
 Question 30535: A bus has its maximum number of passengers when it leaves the bus station. At the first stop, half of the passengers get off. At the next stop 7 people get on and at the next stop 16 people get off. There are now 17 people on the bus. Click here to see answer by venugopalramana(3286)

 Question 29303: Find the point-slope form of the line satisfying the given conditions and use this to write the slope-intercept form of the equation: Passing through (3, -6) and (-3,2) Click here to see answer by Nate(3500)

 Question 30538: when a question asks you to show something algebraically, DO NOT substitute numbers for the variables and give me an example. On the other hand, when a question asks you to show something numerically or to provide an example, you may substitute numbers for the variables. Show all work. Solve for t: 2t(sin(t2+1) + cos(t2+1))2 - 4tsin(t2+1)cos(t2+1) = 2. (Hint: remember that [sin(x)]2 is usually written sin2(x); now look for a trigonometric identity.) Click here to see answer by sdmmadam@yahoo.com(530)