Given the sequence 3, 7, 11, 15, where x = 1, 2, what is the function rule? f(x) = 4
f(x)=4x+3
f(x)=3
f(x) = 4x − 1

f(x)=4x-1

Step-by-step explanation:

The given sequence is 3, 7, 11, 15, ........ where x = 1, 2.....

We want to write a function rule for this sequence.

The first term of this sequence is

The common difference of this sequence is d=7-3=4

The function rule is given by:

We substitute these values to get:

We simplify to get:

answer: c.  

step-by-step explanation:

mixtures containing substances that get attracted to magnet can be separated using a magnet. we can separate iron from a mixture of sand and iron, as only iron attracts to the magnet.