Aubrey K.

asked • 08/18/20

I don't understand the equation y = -4 (2) ^x

I understand that it's an exponential equation, but I can't figure out the steps I should take in order to actually graph it. Do you first multiply the -4 by 2, then solve it as "y = -8^x"? Even then, I don't understand how to make that into a graph. This is how I'm trying to solve it:

y = -4 (2) ^x ---> y = -8 ^x

x | y

0 | -1

1 | -8

2 | -64

3 | -512

Even though this way of solving the equation makes sense to me, it does not match up with the graphs the internet and my calculator are pulling up. Help would be great!

1 Expert Answer


Kenzie N. answered • 08/18/20

New to Wyzant

Experienced Highschool and Younger Tutor

Aubrey K.

Thank you! That helps a lot!


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