State the domain and range of y=-3/4x+4. Please help!

Question

anonymous · Answer

is the equation:
1) $\large y=-\frac{3}{4}x +4$

2) $\large y=\frac{-3}{4x+4}$

3) $\large y=\frac{-3}{4x}+4$

4) None of the above

anonymous · Answer

it's 1

anonymous · Answer

sorry I'm new to the site

anonymous · Answer

pleeease help!

anonymous · Answer

Sorry, I was doing dishes..

For the first one, there is no restriction on the values you can use for x.

anonymous · Answer

So the domain is $(-\infty, \infty)$ or all real numbers.

anonymous · Answer

The function itself is a line that is descending as x increases. So eventually all numbers will be in the range. So the domain and range are the same.

anonymous · Answer

so is the answer "all real numbers"? how do I know if it isn't all real numbers?
thanks so much by the way.