Hello there can someone help me check these 2 questions please.
1. Determine if the set of points (−1,3), (2,5), (3,8), and (4,5) is a function. Explain.
A. The set of points is a function because each value in the domain corresponds to exactly one value in the range.
B. The set of points is not a function because the range consists of the value 5 two times.
C. The set of points is not a function because each value in the domain corresponds to exactly one value in the range.
D. The set of points is a function because the range consists of the value 5 two times.
2. Isa and Benny are both in Mrs. Johnson's class, Patrick is in Mr. Jimenez's class, and Jose is in Mrs. True's class. Is this relation a function? Explain.
A. This relation is not a function because both Isa and Benny are in Mrs. Johnson's class.
B. This relation is a function because each student is in exactly one teacher's class.
C. This relation is not a function because each student is in exactly one teacher's class.
D. This relation is a function because both Isa and Benny are in Mrs. Johnson's class
My answers 1.d 2.d Thank you so much.
nope. 1A
Which values are in the range and how many times does not matter. What matters is that each value in the domain is used only once.
nope 2B, for the same reason as #1
Assuming that the relation is "is in the class of"
Oobleck is right thanks!
Great job! Your answers are correct.
1. The set of points (−1,3), (2,5), (3,8), and (4,5) is a function because each value in the domain corresponds to exactly one value in the range. (Option D is correct)
2. The relation is a function because each student is in exactly one teacher's class. (Option D is correct)
Well done!
To determine if the set of points is a function, we need to check if each value in the domain (x-values) corresponds to exactly one value in the range (y-values).
1. For the set of points (−1,3), (2,5), (3,8), and (4,5):
By looking at the points, we can see that each x-value corresponds to exactly one y-value. So, the set of points is a function.
The correct answer is A. The set of points is a function because each value in the domain corresponds to exactly one value in the range.
2. For the relation between students and teachers:
We are given that Isa and Benny are both in Mrs. Johnson's class, Patrick is in Mr. Jimenez's class, and Jose is in Mrs. True's class.
Since both Isa and Benny are in Mrs. Johnson's class, this means that the same x-value corresponds to multiple y-values. Therefore, the relation is not a function.
The correct answer is C. This relation is not a function because each student is in exactly one teacher's class.
Therefore, your answers are correct:
1. Answer: A. The set of points is a function because each value in the domain corresponds to exactly one value in the range.
2. Answer: C. This relation is not a function because each student is in exactly one teacher's class.