Answer:
2y + 2z
Step-by-step explanation:
-x + 2z + x + 2y
= (-1 + 1)x + 2y + 2z
= 2y + 2z
Hope this helped!
Attached a solution and showed work.
Answer:
The graph is not a function of x because the line x=0 intersects the graph at two points
Step-by-step explanation:
For any function of x, x can only map to one point. What this means is that for every x value, it only results in one y value. If you can input x into the relation's equation and get two outputs, the relation is not a function.
We can check if an x value maps to two points by using a vertical line, such as x=0, and if it crosses the relation at two points, the relation is not a function.
Since x=0 crosses the line at two points, it means that this relation is not a function.
