Answer:
Answer to (4+5): (0,0)
Answer to 6: 0
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.
![2(5) + 5 - 15\\\\10 + 5 - 15\\\\15-15\\\\0](https://img.qammunity.org/2021/formulas/mathematics/high-school/tx6q6qrml61jkz2vr2bpmwgaku3a86wtsy.png)
Hope this helped!