Question

Sequence question

Answer 1

To find the equation of a sequence like this, use f(n)=a1+(n-1)d, where a1 is the first term of the sequence and d is the difference

What are a1 and d?

Answer 2

a1= -7.25 d. 1/2

Answer 3

Right, so here's what we have:
f(n)=-7.25+(n-1)0.5
f(n)=-7.25+0.5n-0.5
f(n)=-7.75+0.5n