help wtih these DS problems please

xcise_science

Thanks

For Q8,
My translation of stmt 1: 10(d) is a factor of 30!
==>so then wouldn't that give me the value for D?
correct answer is C

Q9,
stmt 1: if both x-intercepts are (+), then wouldn't the slopes have the same sign?

syv11 · Posted: Sat Dec 01, 2007 5:16 pm Post subject:

For Q8,

Statement 1 alone does not tell you enough; d could be 1, 2, 3 etc

syv11 · Posted: Sat Dec 01, 2007 5:20 pm Post subject:

Q9

(1) positive x intercept could mean one line has positive y, the other negative -- not enough

(2) enough; negative y and positive point (4,3) means both have a positive slope

B

Is B the correct answer? Please confirm

xcise_science · Posted: Sat Dec 01, 2007 5:25 pm Post subject:

No, the answer to Q9 is C.

syv11 · Posted: Sat Dec 01, 2007 5:33 pm Post subject:

Sorry, did not read that it said product; then it is C