Marco needs to make a five letter password, without repeating any letters. How many different passwords could Marco make?
1 answer:
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Step-by-step explanation:
here's the answer to your question
Answer:
B
Step-by-step explanation:
A graph is only a function when there is only one y value for each x value.
A trick is to draw a line through some points on the x-axis, and if the line goes through more than one point. Then it is not a function. (See picture)
Sorry, not all the lines are straight, but you get the point. B is the only one that doesn't have more than one point on the lines I drew.
