Saturday

August 2, 2014

August 2, 2014

Posted by **jenika** on Thursday, May 17, 2012 at 7:03pm.

2x-y-1=0

a)this sytem has excatly onw solution

b)this system has indinetly many solutions

c)this system has no solution

d)(1,1) and (0,0)

- algebra 1 -
**Reiny**, Thursday, May 17, 2012 at 7:08pmmmmmhhh?

Isn't the second equation the same as the first?

And how many points would satisfy the first?

So what do you think?

- algebra 1 -
**jenika**, Thursday, May 17, 2012 at 7:10pmohhhh so just one solution right?

- algebra 1 -
**Rezu**, Thursday, May 17, 2012 at 7:36pmIf you mean infinite not indinetly than the answer is C.

2x-y-1=0 subtract 2x from each side

-y-1 = -2x + 0 add 1 to each side

-y = -2x + 1 multiply everything by -1

y = 2x-1

The equations are equal, so the system has infinite solutions.

- algebra 1 -
**jenika**, Thursday, May 17, 2012 at 7:55pmoh ok thanks alot

**Related Questions**

algebra - solve system graphically. be sure to check your solution. if a system ...

math - two systems of equations are giving below for each system choosethe best ...

algebra - Which of the following ordered pairs is included in the solution set ...

math - two systems of equations are given below for each system, choose the best...

Algebra 2 Helpp :( - QUESTIONS (vvv) (1) Solve the system by subsitution 2x + y...

Algebra - Solve the system of equation by graphing. Then classify the system. 3x...

algebra 2 - Classify the system , and determine the number of solutions. This ...

Algebra - X-2y=-1 2x+y=4 solve each system using elimination. Tell whether the ...

Linear Algebra - Consider the system x-2y=k-1 4x+(1-k^2)y=8 For what values of k...

math - Solve each system graphically. Be sure to check your solution. If a ...