How many pairs of positive integers (a, b) satisfy 1/a} + 1/b}=2/7?

answer: all the values are within because it has a pattern that repeats from -6 to 4.

good luck!

i think is g(1)=-1.

hope that i can

b. 6

step-by-step explanation:

we are given the table representing an exponential function.

we can see from the table that, as x is increasing, the value of y is increasing in the power of 6.

i.e. the following relation is obtained,

x = 1, y = 6

x = 2, y = 36 =

x = 3, y = 216 =

x = 4, y = 1296 =

x = 5, y = 7776 =

so, the geometric series obtained is .

thus, the common ratio is given by = = 6.

hence, the common ratio is 6.