Question

Help please

Answer 1

graph them and do a vertical line test

however, the last one is a circle, and hence is not a function due to the vertical line test

Answer 2

So c and D?

Answer 3

Still need help?

Answer 4

@3mar YES PLEASE

Answer 5

@3mar

Answer 6

Well, I am here.
Welcome back!

Answer 7

Thank you glad you can help

Answer 8

That is with my pleasure, sister!
I am here for your help.

One simlpe approach: graph each, and see if it passes the "vertical line test"

Answer 9

Okay hold on I will go on demos graphing calculator, once I get my answer can you check it

Answer 10

Of course, sister.
I will not be late for any help.

Answer 11

Okay so this is what I got brother

Answer 12

You are Excellent!
Which one(s) satisfies the "vertical line test"?

Answer 13

Vertical line test is when you go across and see if there is only one point for each right?

Answer 14

Yes, that is right!
and the graph - which in crossed more than once by this vertical line - does not represent a function!

Did you get the idea?

Answer 15

Yes now let me try the problem

Answer 16

C is one answer right? Because it does not have more than one value?

Answer 17

Show me!
\[\Huge\color{DodgerBlue }ツ\]

Answer 18

\[\Huge\color{RoyalBlue }{\checkmark \large {for ~~ C}}\]

Answer 19

so yes fro C?

Answer 20

for*

Answer 21

Yes, sister..
You hit the right target!

What else?

Answer 22

Well a and b look about the same , I'm not sure about those

Answer 23

a represents a horizontal parabola, graphed like that!