Question

f(x)=5^(x+1) -25
Find x and y intercept

Answer 1

What is f(0)?

Answer 2

\[
f(0)= 5^{0+1} -25= 5-25=-20
\]

Answer 3

For which value of x, f(x) =0?

Answer 4

\[
0=5^{x+1}-25\\
5^{x+1}=25=5^2\\
x+1 =2\\
x=1
\]