Question

what value can the vairalbe not have for b-3/b+5?

Answer 1

think of anything that would cause this to not exist. in otherwords... what does b have to be so that the denominator equals 0.

Answer 2

i don't get it just give me the answer

Answer 3

k, i dont want to do that cause then you dont learn anything. but just remember that you can never divide by 0. so think of a number that you can plug in for 'b' that would give you a 0 on the bottom.

Answer 4

5?

Answer 5

close. but that would give you 5+5 which is 10.

Answer 6

it may be easier to visualize if you just try to solve this equation: b+5 = 0. then you just solve for b.

Answer 7

oh so its -5!

Answer 8

yes!! that's right! nice work!

Answer 9

thanks man