Question

6) w(a)= a -1; Find w(0)

Answer 1

-1

Explanation:

Functions are often given in a different notation than other relationships. This is known as function notation.

Function Notation

Function notation is most commonly written with the variables f(x) and x. The variable f(x) is pronounced "f of x". Still, function notation can be written with any variables such as w(a) and a. The independent variable, also known as the y-value, is f(x). The dependent variable is x. For the question above, w(a) is independent and a is dependent. When solving a function for a specific value, to show what the x-value is, we put that value into the parentheses.

So, the question uses w(0) to show that 0 is the a-value we are using to solve. In context, w(0) means to solve the function when a = 0.

Solving for w(0)

To solve this, all we need to do is plug 0 in for a.

• w(0) = 0 - 1
• w(0) = -1

This means that w of 0 is equal to -1.