# Linear, Quadratic, and Exponential Models

## Contact(s)

Judith Spitzli
515-402-8600

Iowa Core Mathematics Documents

Iowa Core Mathematics Support - Resources to support Iowa Core Mathematics.

## Standards in this domain:

### Construct and compare linear, quadratic, and exponential models and solve problems.

• HSF-LE.A.1 Distinguish between situations that can be modeled with linear functions and with exponential functions.
• Prove that linear functions grow by equal differences over equal intervals, and that exponential functions grow by equal factors over equal intervals.
• Recognize situations in which one quantity changes at a constant rate per unit interval relative to another.
• Recognize situations in which a quantity grows or decays by a constant percent rate per unit interval relative to another.
• HSF-LE.A.2 Construct linear and exponential functions, including arithmetic and geometric sequences, given a graph, a description of a relationship, or two input-output pairs (include reading these from a table).
• HSF-LE.A.3 Observe using graphs and tables that a quantity increasing exponentially eventually exceeds a quantity increasing linearly, quadratically, or (more generally) as a polynomial function.
• HSF-LE.A.4 For exponential models, express as a logarithm the solution to abct = d where a, c, and d are numbers and the base b is 2, 10, or e; evaluate the logarithm using technology.

### Interpret expressions for functions in terms of the situation they model.

• HSF-LE.B.5 Interpret the parameters in a linear or exponential function in terms of a context.

Printed from the Iowa Department of Education website on April 20, 2014 at 7:19am.