Some functions are not easily written as a formula. On a graph, a step function looks like a flight of stairs. The graphs of step functions have lines with an open circle on one end and a closed circle on the other to indicate inclusion, like number line inequality graphs. A rounding step function tells us to round a decimal number to the next whole integer or the previous whole integer.
Sample Problems (3)
Need help with "Step Functions" problems? Watch expert teachers solve similar problems to develop your skills.
A taxi ride in SF charges a base rate of $3.00. Each fifth of a mile or fraction thereafter is 50¢; each minute of waiting, or traffic delay is 50¢. Given an airport surcharge of $2.