Question

Which of the following is false for an exponential growth function y = C(1 + r)t?

when C > 0, the function decreases from left to right

the function has a y-intercept of (0, C)

the graph of this function will be identical to the graph of y = abx, if a = c and b = 1 + r

if C > 0 and r > 0, then the graph will only have positive y-values.

Answer 1

you should use ^ to show exponents like this
y = C (1+r)^t

Answer 2

That doesn't really help with my question, but yeah I know, thanks.

Answer 3

you could try a few "test cases"

to test when C > 0, the function decreases from left to right
pick C=1 , and r=1
y = C(1 + r)^t becomes
y = 2^t

t=0 gives 2^0=1
t=1 gives 2^1 =2

so y goes from 1 to 2 as t goes from 0 to 1

when C > 0, the function decreases from left to right
is the function decreasing ?

Answer 4

That doesn't really help with my question,

It helps people decipher the question.