This week in math 10 I learned how to use function notation.

Example 1:

For this example our equation is f(x)=2x+3 and we are already given the input, 11 which we can put in the equation in place of the x. Our equation should now look like this, f(11)=2(11)+3. The next step would be to multiply 2 by 11, which is 22. Which should leave our equation looking like this, f(11)=22+3. Now we must add the 3 to 22, leaving us with the final answer f(11)=25.

Example 2:

For this example we are given . Our input for this is -2. We will now place -2 into every place that has an x, . Now because our equation should now look like, . Now to finish we will add 4+4, .