Question

f(x)=8x√x+3 Find the domain of the function

Answer 1

the domain will contain values, for which the quantity under \(\sqrt{....} \) will be positive.
so, here, if x+3 >0
what can you say about 'x' ?

Answer 2

@warsop87 just like the last one, only with \(x+3\geq 0\) instead of \(x-3\geq 0\)

Answer 3

It told me that was wrong it said the right answer was the infinity sign and 3 so I am confused now

Answer 4

\[x-3\geq 0\iff x\geq 3\]
in interval notation this is
\[[3,\infty)\]

Answer 5

it is just a different notation, interval notation rather than inequality notation

Answer 6

ohhhh ok

Answer 7

for this, \([-3,\infty)\)

Answer 8

for example
\[-2<x\leq 7\] vs
\[(-2,7]\]

Answer 9

thank you so much

Answer 10

you are welcome ^_^