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

Tutors Answer Your Questions about Linear-equations (FREE)

Question 514761: find an equation of a line that passes through the point (6,-1) and perpendicular to the line 5x + 2y =-9
Click here to see answer by mananth(16946)

Question 514774: can you help me with this problem, "which value of r gives the line passing through (3,2) and (r,-4) a slope a 3/2."
Click here to see answer by josmiceli(19441)

Question 514808: find the equation of the line containing the given pair of points. (-3,-6) and (-7,-1)
Click here to see answer by jim_thompson5910(35256)

Question 514811: write the equation of a line that passes through (1,-7) with a slope of 2/3. I need help solving this problem and the steps on how to solve it so I can try to figure out the other ones just like it! thanks!
Click here to see answer by mananth(16946)

Question 514814: what is the slope of x=3y? how do you solve?
Click here to see answer by mananth(16946)

Question 514958: The cost in dollars to ship a package �Next Day� of one pound using Federal
Express can be calculated using the linear equation:
y + 2.085x + 15.08
where x is the weight (pounds) of the package. Draw the graphic of the linear
equation of the cost of shipping if the weight is 6.5 pounds.

Click here to see answer by stanbon(75887)

Question 515053: Find the slope, it is defined of each line. If undefined, state this.
(-3,2) (3,4)
I graphed this, but do not know what ordered pair is in between
Click here to see answer by rfer(16322)

Question 515072: Suppose we describe an equation as equality between functions f(x) = g(x). How do we interpret solutions to equations graphically? Create an example to use in your explanation. What is a solution to an equation?
I know a "solution" to one equation means "where does it cross the x-axis, if anywhere". This mean what are the value(s) of x when y=0, since y=0 is the definition of the x-axis. Also a "solution" to 2 or more equations means where do they cross each other or where do they have the same value. I just unsure of how the equality between the two functions affects this? I'm just confused thanks for the help!

Click here to see answer by stanbon(75887)

Question 515038: what are the slopes of these lines, and the slopes of lines parallel to them?:
1.) y = 2/3x - 7
2.) y - 4 = -8/17(x-3)
3.) x = 4y + 2
4.) the line through (2, 8) (-4, -7)
Click here to see answer by Maths68(1474)

Question 515183: Find a equation in slope intercept form for the line through (6,-2) with a slope of 1\2
Click here to see answer by lwsshak3(11628)

Question 515182: What is the slope of a line perpendicular to 6x = 3y + 5
Click here to see answer by oberobic(2304)

Question 515182: What is the slope of a line perpendicular to 6x = 3y + 5
Click here to see answer by mananth(16946)

Question 515157: what is standard form of the equation of the line passing through the point (-4,-2) and perpendicular to the line y=-2/7x+1
Click here to see answer by mananth(16946)

Question 515136: Give an equation to a line that satisfy the following:
1.) Passes through (0, 6) and is parallel to y = 4x - 6
2.) Passes through (-2, 3) and is perpendicular to 3x - 2y = 8
3.) has the same x intercept as y = -2x + 4 and the same y intercept as
7x - 4y = -3
Click here to see answer by mananth(16946)

Question 515252: Whats the slope of a line through the points (2,4) and (-1,-2)
Click here to see answer by Maths68(1474)

Question 515259: find the equation in the form of y=mx+b through (3,-5) parallel to y=4x+3
Click here to see answer by Maths68(1474)

Question 515258: find the equation in the form of y=mx+b through (2,2) perpendicular to y=3x+4
Click here to see answer by Maths68(1474)

Question 515309: Without solving or graphing, can you say whether the solution set to the
following systems have zero, one, or infnitely many members? Can you also explain why?
1.)
y = 4x - 7
y = 3x + 2

2.)
y = 3x - 6
y = 3x + 1

3.)
-2x + 3y = 2
6y - 4X = 4

Click here to see answer by mananth(16946)

Question 515318: I am unable to solve
m=6 over7,(4,-9)
Click here to see answer by mananth(16946)

Question 515289: (3,-4),y=5x-3
solve for parallel line
Click here to see answer by mananth(16946)

Question 515333: Write an equation for the solution.
The cost C, of a car rental is equal to $9 plus 1/4 miles driven, m. Graph equation only if it is driven 10 miles.
Click here to see answer by oberobic(2304)

Question 515343: Hello,
I need to find y and x intercept of y = 10.
I put y = (0, 10)

On graph, I drew a straight line across through the 10.

Did I do this right? Please help!
Click here to see answer by oberobic(2304)

Question 515344: The question is, find the x and y intercepts of the following equation.
6y=8x
I tried to put it into slope intercept form, but am having trouble.
Click here to see answer by oberobic(2304)

Question 515347: Can you please solve the following by graphing. Demonstrate on the graph what the solution means. Then solve algebraically by substitution and then
again by the addition property of equality?
2x + y = 6
y - x = -3
Click here to see answer by oberobic(2304)

Question 515352: Consider the equation y=mx+b.
When does this equation model a constant-increase situation?
I'm thinking it is when m (slope) is positive. Is this correct?

Click here to see answer by richard1234(7193)

Question 515358: the difference between two numbers is three, two times the first number plus the second number is 3, solve by graphing
Click here to see answer by oberobic(2304)

Question 515346: Hello,
Is (3/8, 1) a solution to 8x - 7y = 10
Click here to see answer by Maths68(1474)

Question 515405: Find an equation for the a line parallel to y=4x and contains (11,0).
Click here to see answer by oberobic(2304)

Question 515436: write equation pass through point and is parallel to the equation to the line given equation (-1,3)y=4x-2
Click here to see answer by Gogonati(855)

Question 515536: Determine which of the ordered pairs
(0, 1), (2, 0), (0, �1), (�8, 5)
are solutions for the equation x + 2y = 2.

Click here to see answer by mananth(16946)

Question 515658: Please help me solve this problem:
1.) 3x+5/3y=19 and -5x^+2y=-11+7X
2.) -2Y^=-20Y+18 and x=24-4y
3.) -6x+15-y
4.) y=-3x^+15x+56
5.) x=7/3+2/4y^-10
Click here to see answer by Alan3354(69443)

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(69443)

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(69443)

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(7384)

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(16322)

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(16946)

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(16322)

Question 516173: 4(2x-3)=-2(3x-8)
what is x?
Click here to see answer by algebrahouse.com(1659)

Question 516173: 4(2x-3)=-2(3x-8)
what is x?
Click here to see answer by Maths68(1474)

Question 516144: y=2x
find four solutions for equations, write the solutions as ordered pairs.
Click here to see answer by jim_thompson5910(35256)

Question 516193: how to solve 10-6(2x-3)
Click here to see answer by jim_thompson5910(35256)

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)

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