Arithmetic/gepmetric sequences determine if the sequence is arithmetic
11,2,-7,-16

Arithmetic Sequence

11,2,-7,-16 are terms of an arithmetic  sequence

Step-by-step explanation:

The four terms  are 11,2,-7,-16

For the series to be an arithmetic progression the difference between each consecutive term must be same .  An arithmetic sequence is a list of numbers with a definite pattern. In an arithmetic sequence,  one takes any number in the sequence then subtract it by the previous one, and the result is always the same or constant then it is an arithmetic sequence

therefore,  if we calculate the difference between the consecutive terms

d1  = 11- 2 = 9

d2 = 2-(-7) = 9

d3=(-7)-(-16) =9

We find that the differences d1 ,d2,d3  between the consecutive terms are same. This difference is called the common difference

Hence we can conclude that  this series is an Arithmetic Sequence

29933333.33

step-by-step explanation:

the image is given below

since the options are not given so we draw it from the equation

the given equation is

y = (x-1) (x+4)

y = y² + 3x - 4

the above equation is a quadratic equation which will have two roots. if we draw the graph for it, it will look like this