The three cards below form a number pattern. The first two cards have been turned over to show their numbers. 2,4,?

What number could be on the third card and what rule has been used?

set each factor equal to 0

4x-3 = 0

2x-1 = 0

solve for x.

4x-3=0

4x=3

x= 3/4

solve for x. 

2x-1= 0

2x= 1

x= 1/2

your answer should be 1/2 is less than or equal to x and 3/4 is greater than or equal to x

apex says the answer is true