Question

5/y-8

Answer 1

What are you supposed to do with that?

Answer 2

5/y-8=0
5-8y=0
y=5/8

Answer 3

find all numbers for which the rational expression is undefined

Answer 4

So it's really \[\dfrac{5}{y-8}\] ?

Answer 5

yes

Answer 6

ok that would be when denominator is 0
so y=8

Answer 7

:)

Answer 8

can you draw out how you figured that out?

Answer 9

please

Answer 10

Ok. :)

So "rational" means "fraction" and "undefined" means "whenever the denominator (bottom) is ZERO".

So basically what value of y makes...

y - 8 = 0 ?

Answer 11

o,ok thank you