which ones is a function? thank you!

1. Can be checked using the vertical line test. By placing a vertical line at any x value, there can only be one point at which the line meets a part of the graph.

2. An x value can only correspond to one y value. B is incorrect since the x value of 5 is both -4 and 1 for the y values.

3. Same as above but with x and y charts. A x value can only correspond to one y value. A is incorrect as two of the same x values (2) appears and corresponds to two different y values (5 and 6).

altavistard altavistard · Answer 2 · 2020-04-11T17:51:24+02:00

altavistard altavistard

11-04-2020

Answer:

B (first row)

Step-by-step explanation:

(A) is not a function because it fails the vertical line test (the line will intersect the graph in more than one place).

(B) is a function because it passes the vertical line test; the vertical line intersects the graph at only one place.

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