Answer:
First figure: The graph is not a function
Second figure:
Statement 1: It is false
Statement 2: It is false
Statement 3: It is right
Explanation:
First graph is not a function.
The domain of it is ⇒ 0 ≤ x < 3 , 3 < x ≤ 6 , 6 ≤ x < 9
From the domain ⇒ x = 6 has two corresponding values of y⇒ 3 and 4
∴ It is not a function because every x must have one and only one
corresponding value of y
Second figure
{(3 , 6) , (4 , 6) , (5 , 7) , (6 , 8) , (7 , 10) , (8 , 10)}
Statement 1: It is false because we use x-value to check function or not.
The relation is a function because every x-value has one corresponding
y-value
Statement 2: It is false because 3 ≤ x ≤ 8 means we will use for x all real numbers from 3 to 8 not only the integers 3 , 4 , 5 , 6, ,7 , 8
The domain of this function is { 3 , 4 , 5 , 6 , 7 , 8 }
Statement 3: It is right because the range is the y-value and all the y-value in the function are 6 , 7 , 8 , 10