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

Answer:
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 [tex]y=|x|[/tex] 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 [tex]w[/tex], we can substitute it into the expression [tex]2w+w-15[/tex] as 5.
[tex]2(5) + 5 - 15\\\\10 + 5 - 15\\\\15-15\\\\0[/tex]
Hope this helped!
Answer:
6: 3w-15
Step-by-step explanation:
you can put all the W's together and just add the -15 at the end.