Piecewise Defined Function, take a look at the picture below.

  f(1) = -1

Step-by-step explanation:

The first step is to identify the applicable "piece" of the piecewise function. For x=1, it is the middle piece.

The second step is to put the argument value where x is and do the arithmetic.

  f(1) = -1² = -(1)(1)

  f(1) = -1

in mathematics, a function is a relationship between two variables such that the value of one of the variables, called the dependent variable, is determined by the value of the other variable, called the independent variable. there is a specific term we use to describe the set of independent variables of a function.

i need a picture

step-by-step explanation: