Answer:
f < 4
Step-by-step explanation:
3f + 9 < 21
21 - 9 = 12
12 / 3 = 4
Answer:
Last Option moved
units right
Step-by-step explanation:
If we have a function f(x) and we want to move it horizontally then we make the transformation:

If
then the graph of f(x) moves horizontally h units to the right
If
then the graph of f(x) moves horizontally h units to the left.
In this case we have the function
and the transformation is performed to obtain 
Notice that in this transformation

<u><em>Then the graph of
moves horizontally
to the right</em></u>
<u>Hint </u><u>:</u><u>-</u>
- To find out the equation of the line we can use the point slope form of the line which is
<u>Solution</u><u> </u><u>:</u><u>-</u>
The given point to us is ,
and the slope of the line is 4 . On using the point slope form , we have ,
<u>Hence</u><u> the</u><u> </u><u>equation</u><u> </u><u>is </u><u>4</u><u>x</u><u> </u><u>-</u><u> </u><u>y </u><u>+</u><u> </u><u>3</u><u> </u><u>=</u><u> </u><u>0</u><u> </u>
( for graph , see attachment ) .