At what values of x does the function y = 2x-4 take positive values?

In order to find out at what values of the variable x of the function y = 2x – 4 takes positive values, we must solve the inequality.

So, we need to find those values of x for which y> 0.

We get the linear inequality:

2x – 4> 0;

We transfer the terms without a variable to the right side of the inequality and get:

2x> 4;

We divide both sides of the inequality by 2 and thereby get rid of the coefficients in front of the variable:

x> 4: 2;

x> 2.

We can write the answer as an interval: x belongs to (2; + infinity).