You can use the vertical line test to determine if the graph is a function.
A function must: for every x value have only one y value.
Vertical line test: if you draw a bunch of vertical lines each line only touches the graph once.
So a circle would not be a function, or a horizontally facing parabola, etc... Remember, if you draw a vertical line "|" and it touches the graph more than once at any point then it is not a function.
Now take a look at the graph in the question.
In this graph if we do the vertical line test there are no place where a vertical line touches the graph twice so this graph is indeed a function.
This means your answer is C. Yes
Answer:
x
^2
−
2
y
^2
−8
x
y
Step-by-step explanation:
The question is already solved, but I am adding a response so it won't show up on the unanswered list.
Answer:
D
Step-by-step explanation:
Answer:
40 square units
Step-by-step explanation:
A = LW
A = 5 units x 8 units
A = 40 square units
