Question

40 points and brainliest

Answer 1

Answer:

61

Step-by-step explanation:

As x goes from 1 to 2, y increases by 3 from 4 to 7

As x goes from 2 to 3, y increases by 3 from 7 to 10

We increase by 3 each time x increases by 1

The formula for an arithmetic sequence is

an = a1+d(n-1)

where a1 is the first term which is 4

d is the common difference or the number we add each time which is 3

n is the term we are looking for which is 20

a20 = 4 +3 (20-1)

a20 = 4+3*19

a20 = 4+57

       = 61

Answer 2

the pattern is

x multiplied by 3, plus one

so 20 x 3 +1

=61