Find a formula for the exponential function passing through the points (-1,5/3) and (2,45)???

Answer 1

Hi Veronica,

using y= ab^x

i substituted what was given

45=ab^2

5/3=ab^-1

i divided the first by the second.

b^3=27

b=3 then plugged that in to get a.

Finally, got y=<5>3^x

hope this helps