Solfe

2012-Apr-07, 03:44 PM

I have 3 questions question which I had a hard time answering. I am not looking for answer to the question, but more of advice on reading problems (I think!).

Q1:

"Find the midpoint of the line segment with the given end points

(8,4) and (2,10)

The midpoint of the segment is {Place for answer}"

Now, I know I am looking to do this

(xm,ym)=((x1+x2)/2,(y1+y2)/2)

The result should look like (a,b).

So, I think the answer is ((8+2)/2,(4+10)/2) = (5,7).

On this question, the website accepts the answer.

The very next question is in the exact same format and text with different numbers. Ok. I cannot get the right answer in three tries and the website shows the correct answer.

It appear that what is different is the presented numbers are not coordinates, but (x1,x2) and (y1,y2).

The third questions text and number different:

"Find the midpoint of the line segment with the following end points

(4,4) and (2,2)

The midpoint of the segment is {Place for answer}"

When I did this question, I assumed that the numbers presented were in the form (x1,x2) and (y1,y2) since the last question used that form. They weren't, so I assumed that they were (x1,y1) and (x2,y2) and that was the answer.

Sorry to be overly complicated and long, but is there anything in the English of those 3 problems that would indicate what each number represents?

Q1:

"Find the midpoint of the line segment with the given end points

(8,4) and (2,10)

The midpoint of the segment is {Place for answer}"

Now, I know I am looking to do this

(xm,ym)=((x1+x2)/2,(y1+y2)/2)

The result should look like (a,b).

So, I think the answer is ((8+2)/2,(4+10)/2) = (5,7).

On this question, the website accepts the answer.

The very next question is in the exact same format and text with different numbers. Ok. I cannot get the right answer in three tries and the website shows the correct answer.

It appear that what is different is the presented numbers are not coordinates, but (x1,x2) and (y1,y2).

The third questions text and number different:

"Find the midpoint of the line segment with the following end points

(4,4) and (2,2)

The midpoint of the segment is {Place for answer}"

When I did this question, I assumed that the numbers presented were in the form (x1,x2) and (y1,y2) since the last question used that form. They weren't, so I assumed that they were (x1,y1) and (x2,y2) and that was the answer.

Sorry to be overly complicated and long, but is there anything in the English of those 3 problems that would indicate what each number represents?