Question

I need help. please show your work!

Answer 1

X =  10 * 3^n
*************************************************************

Answer 2

Exponential function has form y = a(b)^x

we see that when x = 0, then y = 10. Substitute those values to solve for an unknown

10 = a(b)^0

since b^0 is 1 we are left with a = 10.

we have y = 10(b)^x

to find b, use another point on the table. when x = 1, y = 30 so

30 = 10(b)^1
30 = 10b
b = 30/10
b = 3

function: y = 10 · (3)^x

(can also notice that y-values are all being mutliplied by 3)