Let me reword my last question which of the following is an arithmetic sequence (select all that apply) 1.4,8,12,16,20
2.1,3,7,15,31
3.2,9,16,23,30
4.1,1,2,3,5,8
5.1,2,4,8,16
6.13,9,5,1,-3
7.11,17,23,30,36
8.29,20,11,2
9.3,9,27,81
10.0,1,3,6
11.11,15,19,23

system of linear equation

step-by-step explanation:

as given in the data

a= 20 , b= -12

let us suppose that it is a straight line equation

now we know the formula for the system of linear equation

b= ma + c )

here m is slope of a straight line which is equal to formula

m=   (ii)

and here c is a constant

now putting the value of a and b in equation (ii)

m=

m=

putting the value of a,b and m in equation (i) gives us

-12 = + c

-12=-12 + c

adding 12 to both sides

-12 +12 = -12 +12 +c

0 =c

or c=0

as the value of the constant is zero which gives us that it is a linear equation and this order pair satisfies the system of linear equations.