Question

which of the following graphs represent functions? select all that apply.
select all that apply:
figure a
figure b
figure c

Explanation:

Step1: Apply Vertical Line Test

A graph represents a function if any vertical line drawn intersects it at most once.

Step2: Check Figure A

Any vertical line cuts the curve at 1 point. It passes the test.

Step3: Check Figure B

Any vertical line cuts the curve at 1 point. It passes the test.

Step4: Check Figure C

A vertical line can cut the 2 curves at 2 points. It fails the test.

Step5: Check Figure D

Any vertical line cuts the curve at 1 point. It passes the test.

Answer:

Figure A, Figure B, Figure D