Question

If 25 – 4x ≤ 16, find:

1. the smallest value of x, when x is a real number.
2. the smallest value of x, when x is an integer.

Answer 1

25 – 4x ≤ 16

– 4x ≤ 16 – 25

– 4x ≤ – 9

`x ≥ 9/4`

x ≥ 2.25

The smallest integer greater than or equal to 2.25 is 3

1. The smallest value of x, when x is a real number, is 2.25.
2. The smallest value of x, when x is an integer, is 3.