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

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 Question 632836: Please find the slope-intercept and standard form of this equation: m= -3 P1 = (-2, -3) Click here to see answer by mananth(13127)

 Question 632857: Do these linear equations have one solution, or more? If more, than how many and what are they? Can you show me how you got them. And I'd also like to know if they have infinite solutions. Please help. 2x - 4y = 5 3x + 2y = 6 Click here to see answer by ankor@dixie-net.com(16527)

 Question 632946: I was wondering if I solved this problem right. I was supposed to write the equation in vertex form. y=2x^2+12x+13 y-13=2x^2+12x y-13=2(x^2+6x) y-13=2(x^2+6x+9-9) y-13=2(x+3)^2-9 y-13=2(x+3)^2-18 y=2(x+3)^2-5? Click here to see answer by Theo(3556)

 Question 632984: Please help me solve this quetion: Which of the following equations represents a line l that goes through (–5, 7) and has a slope of 1? Click here to see answer by stanbon(60778)

 Question 632927: Can you help me please? How can you determine if 8x=6y+7 as a linear equation with two variables? Is the equation a linear equation in two variables? Click here to see answer by Theo(3556)

 Question 633046: i need help...graph the equation using x and y intercepts... x/2-y/5=1... how do i graph this? Click here to see answer by mananth(13127)

 Question 633028: Ryan buys a computer system for \$3800. For tax purposes, he declares a linear depreciation (loss of value) of \$400 per year. Let “y” be the declared value of the computer after “x” years. Write a linear equation in slope-intercept form to model the value of the computer over time Click here to see answer by KMST(2478)

 Question 633026: Ryan buys a computer system for \$3800. For tax purposes, he declares a linear depreciation (loss of value) of \$400 per year. Let “y” be the declared value of the computer after “x” years. Find the y-intercept of the line. Click here to see answer by KMST(2478)

 Question 633025: Ryan buys a computer system for \$3800. For tax purposes, he declares a linear depreciation (loss of value) of \$400 per year. Let “y” be the declared value of the computer after “x” years. What is the slope of the line that models this depreciation? Click here to see answer by KMST(2478)

 Question 633164: What is the slope-intercept form of the equation of the line described? Through (4,5), parallel to y=3/2x+1 I've tried to fill in the x and y in the equation and got 5=3/2(4)+1 but I didn't know what to do next. Click here to see answer by ewatrrr(11176)

 Question 633188: Consider the line 8x+4y=5? what is the slope of the line parallel to this line? what is the slope of the line perpendicular to this line? Click here to see answer by ewatrrr(11176)
 Question 633188: Consider the line 8x+4y=5? what is the slope of the line parallel to this line? what is the slope of the line perpendicular to this line? Click here to see answer by solver91311(18785)
 Question 633188: Consider the line 8x+4y=5? what is the slope of the line parallel to this line? what is the slope of the line perpendicular to this line? Click here to see answer by GFeliz(4)

 Question 633370: 1.A plane travels from Orlando to Denver and back again. On the five-hour trip from Orlando to Denver, the plane has a tailwind of 40 miles per hour. On the return trip from Denver to Orlando, the plane faces a headwind of 40 miles per hour. This trip takes six hours. What is the speed of the airplane in still air? please show work Click here to see answer by josmiceli(10616)

 Question 633418: What is the answer in a linear equation problem like this: If i can do a job in 4 hour and we can do the same job in 2 hour, how long can you do the job alone? Click here to see answer by ewatrrr(11176)

 Question 633376: Solve the following system of equations. 2x + 4y – 3z = –7 3x + y + 4z = –12 x + 3y + 4z = 4 please show work Click here to see answer by ewatrrr(11176)

 Question 633451: Find the slope and the y-intercept of the line with equation 8x + 9y = 73. Click here to see answer by ewatrrr(11176)
 Question 633451: Find the slope and the y-intercept of the line with equation 8x + 9y = 73. Click here to see answer by MathLover1(7480)

 Question 633453: Adam and Gloria traveled in a sailboat for 4 hours with a 6 mph current in the water. Against the same current, it took them 6 hours to return home. How fast was the boat traveling in still water? please show how you did it. Click here to see answer by ewatrrr(11176)

 Question 633454: Connor went to New York for vacation. He spent 3 nights at a hotel and rented a car for 4 days. Jillian stayed at the same hotel, but spent 4 nights and rented a car for 5 days from the same company. If Connor paid \$675 and Jillian paid \$875, how much did one night at the hotel cost? please show work Click here to see answer by ewatrrr(11176)

 Question 633460: Solve the system of linear equations using the Gauss-Jordan elimination method. (If there is no solution, enter NO SOLUTION. If there are infinitely many solutions involving one parameter, enter the solution using t for the last variable.) 3x + 4y = −11 4x − 2y = 0 Click here to see answer by ewatrrr(11176)

 Question 633457: Find an equation of a line passing through the point (7,3) and parallel to the line joining the points (8,7) and (1,6). Click here to see answer by ewatrrr(11176)

 Question 633489: Solve for x. x/4 - 9 = 3 Click here to see answer by brendaryanmath(1)

 Question 633553: Solve the following system using the substitution method. 16x + 3y = 0 8x + y = 1 please show work Click here to see answer by richwmiller(10283)

 Question 633558: What is the value of y if square root 3y= 6/7? Which answer is it? a. 6 over 7 square root 3 b. 12/49 c. 108/49 d. 6/7 Click here to see answer by solver91311(18785)

 Question 633458: Find the point of intersection of the lines with the given equations. 3x + 4y = -6 and 2x + 5y = -11 Click here to see answer by KMST(2478)

 Question 633792: How do you write the slope-intercept form of the equation of the line. Through: (-3,-3), perpendicular to y= -3x Click here to see answer by ewatrrr(11176)

 Question 633786: Create your own trinomial. Write it in ascending order and identify its degree. Please show me how to do this. Click here to see answer by solver91311(18785)

 Question 633811: I have to write the equation of a line parallel to the given line but passing through the give point. y = -x + 3; (-2,-2) then I have to write the equation of a line perpendicular to the given line but not passing through the given point. y = -2/3x +2; (9,3) I am so twisted by the ways to solve this I am vapor locked on how to complete this. If you can, just show me how to solve the equations with similar factors and I can probably work it out by seeing them. Click here to see answer by solver91311(18785)

 Question 633810: Write the equation of a line in slope-intercept form that has a slope of -2 and passes through the point (2, -8). Click here to see answer by solver91311(18785)
 Question 633810: Write the equation of a line in slope-intercept form that has a slope of -2 and passes through the point (2, -8). Click here to see answer by ewatrrr(11176)

 Question 633800: Solve the system by substitution and determine whether the equations are independent, dependent, or inconsistent. Select one from below: 1.The solution set is {-4, -7}. The equations are dependent. 2.The solution set is {-1, -6}. The equations are independent. 3.The solution set is {-1, -7}. The equations are dependent 4.The solution set is {1, -1}. The equations are independent. Click here to see answer by ewatrrr(11176)

 Question 633812: How many gallons of a 4% acid solution should be mixed with 30 gallons of a 14% acid solution to obtain a mixture that is 8% acid? Click here to see answer by ewatrrr(11176)

 Question 633838: Write the equation of the line which passes through (2, 1) and is perpendicular to x = –2 show the work please Write the equation of the line which passes through (5, –2) and is parallel to x = 4 show work please Click here to see answer by richwmiller(10283)
 Question 633838: Write the equation of the line which passes through (2, 1) and is perpendicular to x = –2 show the work please Write the equation of the line which passes through (5, –2) and is parallel to x = 4 show work please Click here to see answer by ewatrrr(11176)
 Question 633838: Write the equation of the line which passes through (2, 1) and is perpendicular to x = –2 show the work please Write the equation of the line which passes through (5, –2) and is parallel to x = 4 show work please Click here to see answer by solver91311(18785)