Question

what is the y-intercept for all graphs of the form y=ab^x (where b is not 0)?

Answer 1

what is the value of y when x = 0?

Answer 2

well, if x equals zero than there would be no exponent but I still don't know what y would be...

Answer 3

if x = 0 b^x (b not equal to 0) = 1

Answer 4

so if a =1 then the y intercept will be at y=1

Answer 5

ok, so the y-intercept for all the graphs would be 1?

Answer 6

in fact the y intercept will be a the point where y=a (0,a)

Answer 7

* at the point

Answer 8

so, the y-intercept for all graphs will be what a equals? That is true.

Answer 9

yes

Answer 10

Yay! thank you so much! I became a fan of yours!

Answer 11

yw