comparing with:
[tex]y=ab^x[/tex]Then a = 1 and b=3
To find the y-intercept, substitute x=0
[tex]y=3^0=1[/tex]The y-intercept is 1
[tex]y=-3^x[/tex]Comparing with
[tex]y=ab^x[/tex]The value of a =-1 and the value of b is 3
To find the y-intercept, substitute x=0 into the equation
y=-1
The y-intercept is -1
