Determine whether the graph is the graph of a function.
yes or no?
@satellite73 @jim_thompson5910 @dan815 @iambatman @perl @abb0t @nnesha

Question

Determine whether the graph is the graph of a function.
yes or no?
@satellite73 @jim_thompson5910 @dan815 @iambatman @perl @abb0t @nnesha

anonymous · Answer

attachment

anonymous · Answer

do you know the "horizontal line test?

anonymous · Answer

if a horizontal line crosses the graph more than once, the answer is NO
if it crosses only once, the answer is YES

anonymous · Answer

i just need help with the answer, i am pretty sure it is a no @satellite73

anonymous · Answer

@satellite73

anonymous · Answer

|dw:1429585296649:dw|

anonymous · Answer

you are right, it is NO

anonymous · Answer

can you help me with another problem @satellite73

anonymous · Answer

Determine the domain of the function.
@satellite73

anonymous · Answer

you cannot take the square root of a negative number 
solve 
$$9-x\geq 0$$ for $x$ in one step to get the domain

anonymous · Answer

is it clear what that one step is?

anonymous · Answer

i think i know the answer is it |dw:1429585575511:dw| right @satellite73