help!

posted by .

Can you please give me one of them so I cansolve for the other one?PLease!

The general formula for a straight line is y = mx + b.
Just plug the points into the equation to arrive at two equations.
6=2m+b
10=4m+b
you have two equations and two unknowns. Solve them simultaneously to obtain an answer for b

Multiply the first equation by -2. Leave the other one as is.
-12=-4m-2b
10=4m+b
=============
Now add the two equations
-2 = 0m -b or
-2 = -b
and b = 2
Check my arithmetic. Now plug b into one of the equations to solve for m, then plug those two values into your original equation to see if it is satisfied. If so, then 2 is the answer you need.



It would be helpful, and get you quicker answers, if you put the SUBJECT (in this case math) in the SUBJECT line.

Thanks.

=)

What would be the missing piece of information given the following information:

Find the equation of the line that passes through the points (2, 6) and (4, 10).

y = 2x + ?

4

2

7

5


The general formula for a straight line is y = mx + b.
Just plug the points into the equation to arrive at two equations.
6=2m+b
10=4m+b
you have two equations and two unknowns. Solve them simultaneously to obtain an answer for b

  • help! -

    I need help with this problem for homework
    for graphing and linear equations

    y=2x-4.2

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. calc

    What are the intercepting points of y^2=-4x and x^2=y I set both equations equal to 0, but only get x=0 and there is another intercepting point. please help! You can solve for one of the equation and substitute it into the other equation. …
  2. algebra

    how would i find an equation of a line that goes through points(1,6) and (3,10)?
  3. Finding a Formula, help please !

    Does anyone know the formula to find any point between two other given points in a line?
  4. HELP!!!!!!!! please!!!!!

    solve the system using substitution {x+2y=11 {3x+2y=13 i just told you how to do the other one; it's the same exact method. solve for x and y. you get: x=-2y+11 and y=(-1/2x)+(11/2). then plug them both back into the original equation …
  5. math

    can someone write out the equations so i can solve it. Please... #1 A biologist recorded 9 snakes on 21 acres in one area and 13 snakes on 47 acres in another area. Let y be the number of snakes in x acres. Write this one in a linear …
  6. Math

    On a grid with points R(-2,-6)& S(3,4), what is the slope of line RS?
  7. Algebra 2

    What's the formula given three points to come up with the quadratic equation were your give points (x1, y1 ) (x2, y2) (x3, y3) I remember seeing some really long equation were you just plug the numbers into it and get your answer but …
  8. Maths

    Hi, need a bit of help on this one. A straight line passes through the points (4,3) and (10,0), I need to write down the equation of the line in the form y=mx+c, I have tried but I cant seem to get the second coordinates to satisfy …
  9. Math

    How do you find the point of intersection(s) for x = 2y2 + 3y + 1 and 2x + 3y2 = 0 A) You cannot find points of intersections for non-functions. B) Plug in 0 for x into both equations and solve for y. Then plug that answer back into …
  10. Math

    How do you find the point of intersection(s) for x = 2y2 + 3y + 1 and 2x + 3y2 = 0 A) You cannot find points of intersections for non-functions. B) Plug in 0 for x into both equations and solve for y. Then plug that answer back into …

More Similar Questions