Matching inputs to function outputs

The  exercise appears under the Algebra I Math Mission. This exercise practices matching inputs to function outputs.

Types of Problems
There are two types of problems in this exercise:
 * 1) Which of the following is an input value for which f(__)= __ ?: This problem has a graph of a function and user is asked to find which answer is the correct input for the function.
 * 2) What is the input value for which f(__) = ___ ?: This problem has a function and user is asked to find substitute the formula for the new function and the input value of it.

Strategies
Knowledge of systems of inequalities are highly recommended to ensure success in this exercise.
 * 1) To find the input value for which f(__) = __, user needs to substitute f(__), with its formula and solve the equation.
 * 2) If user is having trouble finding the input value of a function, they can use the scratchpad tool to draw on the graph.

Real-life Applications

 * 1) Problems like this will appear on standardized tests, like the SATs and the ACTs.