# Step function domain and range

## Domain and Range Restrictions

Given the graph of a step function, find the function's outputs for given specific inputs. Worked example: domain & range of piecewise linear functions.

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Piecewise functions are just what they are named: pieces of different functions sub-functions all on one graph. Remember that we still use the origin as the reference point for both graphs! See, not so bad, right? Here is the function again:. You can also see that we did this correctly by using the graph above. Sometimes the graphs will contain functions that are non-continuous or discontinuous , meaning that you have to pick up your pencil in the middle of the graph when you are drawing it like a jump!

It's best to start graphing piecewise functions by reading the "if" statements first, and you'll most likely shorten the chance of making an error by doing so. However, our restriction is "all "x"-values less than "0 , so we will only draw the left half of the graph, and leave an "open circle" at the point 0,0 , as the restriction is "less than 0" , and does not include 0. Our next graph is a normal linear function "shifted upwards by two" but only appears from 0 " to " 3 , and includes both, so we will draw the graph from 0 " to " 3 , with "shaded circles" on both 0 and 3. Just as explained above, we have the parent function of a color red "quadratic" , a color blue "linear function" , and a color green "horizontal constant function". Like we said above, the quadratic only appears less than zero, the linear only appears from 0 to 3, and the constant only appears after 3, so:. Apr 4,

Notice that we can use the data to create a function of the amount each movie earned or the total ticket sales for all horror movies by year. In creating various functions using the data, we can identify different independent and dependent variables, and we can analyze the data and the functions to determine the domain and range. In this section we will investigate methods for determining the domain and range of functions such as these. Figure 1. Based on data compiled by www.

A step by step tutorial on graphing and sketching piecewise functions.
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## Graphing a Step Function

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1. Sebastian S. says:

2. Onsommoshit B. says:

Domain and Range Restrictions – Desmos

3. Zachary T. says:

Domain and Range of Functions | College Algebra

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5. Maytakontu says:

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