Determine which sequence is an arithmetic sequence. Question 18 options:

a)

–7, –3, 1, 5, ...

b)

15, 17,19, 111, ...

c)

−10, 5, −52, 54, ...

d)

3, 6, 12, 24, ...

A

Step-by-step explanation: An arithmetic sequence is a pattern in which the same number is repeatedly added or subtracted.

Notice that in the the first sequence shown, we add 4 to reach the next term in the sequence which means this is arithmetic.

The others are not arithmetic because the difference

between the terms does not remain constant.

the required function is .

step-by-step explanation:

from the given table it is noticed that the graph passing through (-3,7), (0,4), (3,1) and (8,-4).

it is a linear function because the value of y is decrease by one as the value of x increase by 1.

the slope of the function is

the slope of the function is -1 and the y-intercept is 4.

the slope intercept form is

where, m is slope and b is y-intercept.

therefore the required function is . the graph of this function is shown below.

a = 3.14

b = 18

c = 18/5 or 3.6 or 3 3/5

step-by-step explanation: