Hi there!

The value of f(-6) is the y-value at the x-coordinate x = -6.
Looking at the graph, we can see that at x = -6, y = 5.
Therefore, f(-6) = 5.
That is simple all you have to do is multiply the number of white cars by 9 and you will get your answer. 40*9=360
Adding 4 to both side is wrong he has to be subtract 4 to both side
Answer:
This explains triangle sum theorem
Step-by-step explanation:
Which States that the sum of interior Anglea of a triaiare always 180°
First you need to get 3% of 7 so
7x0.03= 0.21
then you need to add that 3% onto 7
7+0.21=7.21
therefore the door frame is now 7.21 feet high