Find an explicit formula for the geometric sequence 3, 15, 75, 375 ...

3 (5) ^x-1

Step-by-step explanation:

I'm assuming that the y term 3 is the first term in the sequence which would mean that your first number in the equation would be 3. then, you find the slope of the sequence (5) so your equation is now five times three. Then you would raise it to the power of (x) and subtract one from x because 3 is not the y intercept but in fact the first term.