Find the next number to complete the sequence 3, -6, 12, 4, 20, ?

The next number to complete the sequence is 13

Step-by-step explanation:

The sequence of given data is the reducing number by the specific value and the add double of same number in the outcome.

The difference between numbers

-6-3 = -9

12 -(-6) = 18

4 - 12 = -8

20 - 4 = 16

The pattern if behaves as

x-n

x-2x

According to given pattern new number should be

x - 20 = -7

x = -7 +20

x = 13

The next umber will be 13

13

Step-by-step explanation:

From the sequence above the number has a negative sign,increasing and decreasing at rates not quite understandable unless a proper attention is paid.

The sequence of the above data is the reducing number by the specific value and the add double of same number in the outcome.

Take a look a this

-6-3 = -9(the first number is subtracted from the second)

12-(-6)=18

4 - 12 = -8

20 - 4 = 16

From the above one can realize that the outcome of every single linear algebra having the -ve sign will increase by 1(that means +1 is added to the previous number with a negative sign.

So to following the sequence, the next number will b -7

According to given pattern new number should be

x - 20 = -7

x = -7 +20

x = 13

step-by-step explanation:

i think something is missing in your question because y-1=(x-12) would not pass through the point (-4,-3). because if you replace x by -4 your are supposed to find y=-3 which is not the case her. if you replace x by -4 you find =-15.

i assume the right equation is y-1=1/4*(x-12) because this one is passing through both your points (if you are interested to know how i found that out i can tell you).

in this equation if i replace x by -4 i find y=-3 and if i replace x by 12, i find y=1 so the line representing this equation is passing through those 2 points.

then the standard form of the equation is finding an expression of y in function of x

y-1=1/4*(x-12)

y=x/4-3+1

y=x/4-2

hope that .

do you confirm there was a mistake in the question?