Can someone please help me with 4+5 and 6 pleaseeeee

Answer to (4+5): (0,0)

Answer to 6: 0

Step-by-step explanation:

(4+5 Explanation):

We can start to imagine the graph of in our head.

If we have a positive value of x, then y will be equal to x.

If we have a negative value of x, then y will be the opposite of x (since the absolute value of a negative is a positive).

This means that the graph will look a bit like this, changing at the point (0,0).

\/, it would look like a downward facing arrow. This means the vertex is at (0,0).

6 Explanation:

If we know the value of , we can substitute it into the expression as 5.

Hope this helped!

$175

Step-by-step explanation:

Let x represent money saved by her in one month.

So money saved by her in one year (12 months) would be .

We can represent our given information as:

Therefore, she needs to save $175 per month.