f>0
f is concave up
The expression f > 0 is a mathematical inequality that states that the function f is greater than zero. This means that all the values of f are positive and do not include zero.
In other words, graphically speaking, the function f will be located entirely above the x-axis in the coordinate plane, because it never reaches or goes below it.
This inequality is often used to represent situations where a quantity must be positive or non-zero. For example, if f represents the profit of a business, then f > 0 would mean that the business is making a profit, but if f represents the amount of snow on a road, then f > 0 would mean that the road is not completely clear of snow.
Overall, f > 0 is a simple yet powerful mathematical expression that is used in various contexts to represent positive or non-zero quantities.
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