Question

What is the domain of the function in interval notation: f(x)=ln(-7-x)

Answer 1

Hint:

the argument must be positive, so

-7 - x > 0

Answer 2

solve for x

Answer 3

-7>-x?

Answer 4

i mean -7>x?

Answer 5

-7 - x > 0

-7 - x+x > 0+x

-7 > x

Answer 6

good you beat me to it

Answer 7

so x < -7

Answer 8

which means your answer in interval notation is what

Answer 9

Im not sure

Answer 10

(0,7)?

Answer 11

it would be \[\Large \left(-\infty, -7\right)\]

Answer 12

since you're basically considering everything less than -7

so you're starting at -infinity, then going up to -7, but not including it

Answer 13

Oh i see! Thank you very much

Answer 14

yw