Question

Algebra I Help!

Which pair of graphs should be plotted to show the solution to 4x = 2x?

Graphs A and B

Graphs B and C

Graphs C and D

Graphs A and D

Answer 1

i need to log on to your account to view the graphs

Answer 2

Okay, let me try something.

Answer 3

k

Answer 4

wait a minute, you said the graph was 4x=2x? wouldn;t that just be 2x?

Answer 5

And I don't know, I have to pick a pair of lines. The choices are on the top.

Answer 6

@agent0smith @mathstudent55 @ranga @campbell_st @kelliegirl33 @Ashleyisakitty

Answer 7

just post a screenshot so we can see

Answer 8

I'd graph y = 4x and y = 2x and see where they intersect

but thats just a guess

Answer 9

@agent0smith

Answer 10

Those clearly aren't linear graphs like 4x = 2x

It's asking for where\[\Large 4^x = 2^x\]

Answer 11

The question does seem to be asking for 4x = 2x...that's why I'm confused.

Answer 12

It IS asking for 4 times x = 2 times x. Even thought that wouldn't be true I think.

Answer 13

It is. Those are exponential graphs.

Answer 14

No, it's not asking for where 4x=2x. Those would be straight line graphs, not exponential curves

Answer 15

Okay.

Answer 16

It would've been easier to post the whole question, screenshot all of it if you were unsure what exactly it asked for.

Eliminate any choices involving option A, since it's a reflection over the y-axis, meaning the x would be -x.

You can also eliminate graph B, since it has a y-int of 4, when both 4^x and 2^x would have a y-int of 1, since any number to the power of zero is 1.

Answer 17

Would C be the correct answer?

Answer 18

Well you've eliminated graphs A and B, and that only seems to leave one choice.

Answer 19

Oh, okay thanks. :)