Question

what is the function rule of(0,1), (1,3), (2,9), (3,27), (4,81)

Answer 1

y=2x+1
y=mx+b
b=y-intercept which is (0,y)
m=slope
slope formula is:
y2-y1/x2-x1

Answer 2

thank you but thats not what im looking for
im looking for somthing like y=2x - 2

Answer 3

(0,1) is the y-intercept, -2 is not your y-intercept based on the points you given.

Answer 4

\(\large \begin{array}{lrlll}
x&y\\
\hline\\
0&1\implies 3^0\\
1&3\implies 3^1\\
2&9\implies 3^2\\
3&27\implies 3^3\\
4&81\implies 3^4
\end{array}\)

notice anything?

Answer 5

that helps but i need the answer

Answer 6

Maybe something like\[f(x)=3^x\]That function is defined for all values of x; based on the way it was described, the domain might only be\[x \in \left\{ 0.1.2.3.4 \right\}\]