.

[molten jetty]

I need help icl

[formal narwhal]

Substitute points P and R into
y=a(b^x)

then divide the two equations to cancel out,a, and then you can find out what b is

then subsitute b back in with one of the points to find out what a is

then sub in x=-1
into y=a(b^x)
k=a(b^-1) and this time you know what a and b is

[molten jetty]

What do you mean by divide the two equations ?

[formal narwhal]

so u have
y=a(b^x)
32 = a(b^4) (eq 1)
1=a(b^1.5) (eq 2)