Math problem SS below

Question

Astro · Answer

attachment

Astro · Answer

I'll tell you what I know first.

snowflake0531 · Answer

A function is a function if it passes the vertical line test, which means that one x value cannot have more than one y value

Astro · Answer

Yes I know lol

Astro · Answer

So A is a function

Astro · Answer

Because each input has one output

Astro · Answer

I don't think B/II is a function because x is raised to the power of 2

snowflake0531 · Answer

@astro wrote:

So A is a function

no a function also has to be... lines, not coordinates

snowflake0531 · Answer

@astro wrote:

I don't think B/II is a function because x is raised to the power of 2

... THe power doesn't matter the power raised to a power of two means that it's a quadratic equation, which means that it's a function

Astro · Answer

Yeah okay i get the second thing you said but how would the first one not be a function, if each input has 1 output wouldn't that make it a function?

snowflake0531 · Answer

okay wait i messed

Astro · Answer

So would it?

snowflake0531 · Answer

Okay so honestly all of them has 1, so just look at 2, 3, 4, and since we've already established two is a function too, we're left with c and d

So now look at the graph of D, is it function?

Astro · Answer

So to make the graph a function would mean that it would have to pass the verticle line test which it does so it would be a function...I think

snowflake0531 · Answer

yea so you have 1, 2, 4, so what's your answer

Astro · Answer

So it would be D

snowflake0531 · Answer

ye

Astro · Answer

ok thanks snow

snowflake0531 · Answer

yw~, and sorry for the mistake <.<

Astro · Answer

haha it's fine, everyone makes mistakes no need to apologize

snowflake0531 · Answer

.-. okie thnx

Astro · Answer

Np (: