How do I find the first four terms of the sequence?

well your first term is obviously 5, then substitite n for 2, 3, and 4

a2 = a1+5 --> a2 = 12

a3 = a2 +5 --> a3 = 17

a4 = a3+ 5 --> a3 = 22

y = - 6

step-by-step explanation:

given the point (- 2, y) lies on the graph then it is a solution of it's equation.

substitute x = - 2 into the equation for value of y

y = 3(- 2) = 3 × - 2 = - 6

the point on the graph is (- 2, 6)