Question

did i do this right

find the domain of The domain of the function \[\sqrt{-5x - 6}\]. write in interval notation

-5x - 6>= 0
-5x>=6
x=<6/-5

interval notation is [6/-5,inf)

??

Answer 1

work is right, interval is wrong

Answer 2

x=<6/-5 implies x<= -(6/5)
so in interval notation:
(-inf, -6/5]

Answer 3

\[x\leq-\frac{6}{5}\] means x is less than not greater than. what mathmate said

Answer 4

thanks