What is the common difference in the following arithmetic sequence?

7, 3, –1, –5,

Step-by-step explanation:

The common difference of an arithmetic sequence is the difference in next term minus term before it.

We can check by taking all of the terms in the sequence given. the common difference will be same for all.

As you can see, the common difference is  

g = (2, 2)

step-by-step explanation:

given the ratio is 1 : 1 then f is the midpoint of eg

let the coordinates of g = (x, y)

using the midpoint formula

(0 + x) = 1 ( multiply both sides by 2 )

0 + x = 2 ⇒ x = 2

similarly

(4 + y) = 3 ( multiply both sides by 2 )

4 + y = 6 ( subtract 4 from both sides )

y = 2

coordinates of g = (2, 2)

2x^2+5x+17

your welcome. : )