Question

Did I do this Algebra problem correctly? :)

y=4(5^x-10)

It's -36, right? :)

Answer 1

y is -36 when x is 1

Answer 2

sorry when x is 0

Answer 3

Well, I got -40, but that wasn't part of the multiple choice responses. So... I got -36 because that's the closest. :P

Answer 4

how did u get -40 ??
x^0=1
so 5^0=1
and 1-10=-9
4*-9=-36 .....

Answer 5

y=4(5^x-10)

Obviously 5 x 0 is 0 so we have 4 x -10 = 40.

Answer 6

its 5^x not 5*x
5^x means 5*5*5*5....x times
so if we do it 0 times , we get 1