Answer:
-12
Step-by-step explanation:
the opposite of 12 is -12
Substitute x=0
5y=-30
y=-6 is the y intercept
Answer: y=-3x+29
Step-by-step explanation:
First put in y-intercept form to find the slope

Slope of the 1st equation is 1/3- the slope of the line perpendicular is the opposite reciprocal, so in the case it is -3
Use the point and the new slope to write the new equation in point slope format

Answer:
The diver will be in free fall for
seconds.
Step-by-step explanation:
The distance in feet, that an object falls in t seconds is given by the function
.
Now, given that the height is 4800 feet and we have to calculate the number of seconds the diver was in a free fall.
Therefore,
⇒
⇒
seconds.
Therefore, the diver will be in free fall for
seconds. (Answer)