Ask your own question, for FREE!
Mathematics 14 Online
OpenStudy (howard-wolowitz):

Explanation for: this exponential function:

OpenStudy (alexalas):

it is kind of simple. fill in x with the x coordinates and see which exponential function lands on that point. remember (x,y). so what does \[y=3(4)^{x}\] when x =2 do the same for all the equations

OpenStudy (alexalas):

hello?

OpenStudy (howard-wolowitz):

im here, just trying to get it right

OpenStudy (howard-wolowitz):

ok so you just take each solution and sub in 2 for the x?

OpenStudy (howard-wolowitz):

for the second one I got y=72

OpenStudy (alexalas):

I am here

OpenStudy (howard-wolowitz):

or do you graph each one and see if those points meet with the 2 sub in for x

OpenStudy (alexalas):

both work

OpenStudy (alexalas):

sub 2 for x then sub 3 for x.

OpenStudy (howard-wolowitz):

each time i did it I didnt get points on a graph, but instead whole numbers

OpenStudy (howard-wolowitz):

UNLESS you take each point and match them up

OpenStudy (howard-wolowitz):

for the second half of the 2 and the 3

OpenStudy (alexalas):

well if you sub 2 for x the answer will be y for example y=2x and we substitute x with 2, y=2(2), y=4

OpenStudy (alexalas):

when graphing the coords are (x,y)

OpenStudy (howard-wolowitz):

that's confusinsg

OpenStudy (alexalas):

so if the coords are (2,24) x=2 and y=24

OpenStudy (howard-wolowitz):

ok let me try that give me one minute plz

OpenStudy (howard-wolowitz):

The answer is C

OpenStudy (alexalas):

yes

OpenStudy (howard-wolowitz):

awesome

OpenStudy (alexalas):

any more questions?

OpenStudy (howard-wolowitz):

actually yes three

OpenStudy (alexalas):

okay close this one and make a new question

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!