closetgeek

2012-May-30, 04:53 PM

I promise, no one is doing my math homework for me, it's already been done, last week. I got a portion of a problem wrong in my math homework. I can't figure out how it's wrong and I sent a message to my instructor, last week. I haven't heard back from her, yet. I gave my fiance the equation and he came out with the same thing I did, so he can't help me. I was wondering if anyone else can do the equation and see what you come up with.

The question gives the equation 9x -6y = -6 and then asked if either of these two ordered pairs are solutions (4, -8), (10/3, 6).

For (4, -8) I put no, it is not a solution to 9x - 6y = -6 and I got that part correct.

For (10/3, 6) I put yes, it is a solution to 9x -6y = -6 and I got marked wrong by the program.

When I go through the "Help Me Solve" part, it explains every step of the first ordered pair. When I get to the second ordered pair, it stops at

9(10/3) - 6(6) = -6 and just tells you to simplify which is 9(10/3) = 90/3 which = 30 and -6 * 6 = -36.

30 - 36 = -6 so; -6 = -6. However, when I click "yes" it is a solution it tells me this:

"You answered yes. The correct answer is no because when the value of x and y are substituted into the equation, the right and left sides are equal."

I've gone through notes, the textbook and videos and I cannot find a single time when substituting ordered pairs is a true statement but not a solution.

If it's a glich in the system, I want my instructor to change my grade because that one problem is the reason I don't have 100% on my homework. Am I overlooking something or does it look like some sort of computer error?

The question gives the equation 9x -6y = -6 and then asked if either of these two ordered pairs are solutions (4, -8), (10/3, 6).

For (4, -8) I put no, it is not a solution to 9x - 6y = -6 and I got that part correct.

For (10/3, 6) I put yes, it is a solution to 9x -6y = -6 and I got marked wrong by the program.

When I go through the "Help Me Solve" part, it explains every step of the first ordered pair. When I get to the second ordered pair, it stops at

9(10/3) - 6(6) = -6 and just tells you to simplify which is 9(10/3) = 90/3 which = 30 and -6 * 6 = -36.

30 - 36 = -6 so; -6 = -6. However, when I click "yes" it is a solution it tells me this:

"You answered yes. The correct answer is no because when the value of x and y are substituted into the equation, the right and left sides are equal."

I've gone through notes, the textbook and videos and I cannot find a single time when substituting ordered pairs is a true statement but not a solution.

If it's a glich in the system, I want my instructor to change my grade because that one problem is the reason I don't have 100% on my homework. Am I overlooking something or does it look like some sort of computer error?