Question

sorry but need help again with finding domain with

y= ln (2x-12)

in interval notation. the ln throws me off

Answer 1

notice that it is of the ln(x) family

Answer 2

get the 2 off there by dividing it out to see how "x" itself is modified

Answer 3

y = ln[ 2(x-6) ] right?

Answer 4

ok i see

Answer 5

the domain is the same as the domain for ln(x), but add 6

Answer 6

dom ln(x) = (0,inf)
+6+6
------
(6,inf) right?

Answer 7

thats what i got, however for some reason my answerkey has (2, infinty)????? could be error?

Answer 8

could be, or i could have not remembered right ... both are highly probable

Answer 9

2x-12 > 0

2x > 12

x > 6

Answer 10

if you got a teacher, ask about it; or wait around for someone smater than me :)

Answer 11

lol thanks i appreciate it your time