PLEASE HELP

Identify the 15th term of the arithmetic sequence in which a. = 10 and ao = 20.

The 15th term is 160

Step-by-step explanation:

The details are not clear. So, I will make the following assumptions

---- common difference

---- first term

Required

The 15th term

This is calculated as:

Substitute 15 for n

Substitute values for d and a

step-by-step explanation:

here's what happens:

1) the graph of f   = x^2 is shifted 2 units to the right.

2) the resulting graph is reflected in the x-axis, so that the parabola now opens down.

3) this final result is transformed up by 5 units.