1.

How Can You Isolate The Term f/3? Solve Iready Asap

Answer»

When an equation is already in slope intercept form it is very simple to convert it into function NOTATION. Suppose we have:

y

=

2

x

+

4

To convert it into function notation we just REPLACE the

y

with

f

(

x

)

.

f

(

x

)

=

2

x

+

4

This form easily informs US that whatever we INPUT for

x

it will impact what

f

(

x

)

equals.

f

(

x

)

=

2

x

+

4

Suppose we get an equation not in slope intercept form.

2

x

+

4

y

=

18

To TURN this into function notation, we need to first rewrite it by isolating

y

.

2

x

+

4

y

=

18

2

x

−

2

x

+

4

y

=

18

−

2

x

4

y

=

18

−

2

x

4

y

4

=

18

−

2

x

4

y

=

9

2

−

1

2

x

Now we can convert it into function notation by replacing the

y

with

f

(

x

)

.

f

(

x

)

=

9

2

−

1

2

x

Try it Yourself

Write the following equation in function notation.


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