![[personal profile]](https://www.dreamwidth.org/img/silk/identity/user.png){kind=small}
Another iffy algebra set
Mar. 18th, 2011 02:14 pmThis one is from the book's final exam:
y = -2x
3x + -4y = 10
a. (4,-2)
b. (-2,4)
c. (-4,2)
d. (2,-4)
And please, do show your work.
*growls*
There were six exam questions they got wrong. Most of them involved misused negatives, like the problem shown above.
Not counting those six (most of which I guessed their "correct" answer correctly), I only got one wrong (maybe. Looking it over again, I'm not so sure... 5x-5<20; is it x>5 or x<5? Book says x<5, I said x>5). I think I can safely move onto algebra II/trigonometry now.
y = -2x
3x + -4y = 10
a. (4,-2)
b. (-2,4)
c. (-4,2)
d. (2,-4)
And please, do show your work.
*growls*
There were six exam questions they got wrong. Most of them involved misused negatives, like the problem shown above.
Not counting those six (most of which I guessed their "correct" answer correctly), I only got one wrong (maybe. Looking it over again, I'm not so sure... 5x-5<20; is it x>5 or x<5? Book says x<5, I said x>5). I think I can safely move onto algebra II/trigonometry now.
