Use the equation below to answer the question.
y = 3x + 6
which equivalent equation is correctly matched with a key feature of the graph of the function it represents?

The signa notation to represent the first five ten f(x) is given by

Step-by-step explanation:

Given sequence is -5, -9, 13...

Let f(x) be the given sequence and is denoted by

Let the first term be  term be

ie,

To find the common difference d:

Therefore the common difference d is -4 for given sequence f(x) with and d=-4, the seqence f(x) is an arithmetic sequence

By defintion of arithmetic sequence

Now to find :

put n=4 in equation (1)

       [since a=-5, d=-4]

in equation (1)

      [since a=-5, d=-4]

Therefore and

Therefore

Now to represent the sum of the first five terms of f(x) using sigma notation as below

where

probably the last option

step-by-step explanation: