Monday

October 20, 2014

October 20, 2014

Posted by **margie** on Wednesday, November 1, 2006 at 5:21pm.

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

-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

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! -
**Tiffiney**, Monday, November 3, 2008 at 6:07pmI need help with this problem for homework

for graphing and linear equations

y=2x-4.2

**Answer this Question**

**Related Questions**

Finding a Formula, help please ! - Does anyone know the formula to find any ...

math - can someone write out the equations so i can solve it. Please... #1 A ...

math30 - A sequence has a first term of 24 and every other term is one half of ...

AP Physics - Could you please help me out with the following problems please? If...

chem-repost - I ddin't know if anybody would look far down to page to help me ...

AP Physics Word Problems ASAP! - Could you please help me out with the following...

algebra - Can someone please try and see if you understand what I'm asking. Says...

math - how would you solve for y in this problem: x=(y^2+3y)^(1/3) I got: y= x^3...

Kim what about this one?Can you please help me wit - Thanks,what abou this one? ...

Algebra 1 - Graph the system of inequality x+2y <10,2x+y <10,x>0,y>0...