True because zero is a whole number
Answer:
Step-by-step explanation:
We are going to find the slope by lining up the points vertically and subtract, then put 2nd difference over first.
Also you could just use . It is the same thing.
( 5 , 5)
-( 1 , 3)
--------------
4 2
So the slope is 2/4 or 1/2 after reducing.
The point-slope form a line is
with a point on the line given and with slope given.
We are going to solve this for y and simplify what we can because our goal is y=mx+b; this is slope-intercept form. It is called that because it tells us the slope,m, and the y-intercept,b.
Distribute:
Add 3 on both sides:
Simplify:
We can make use of the doubling formula but instead we change it to tripling since from the problem statement the population triples every 90 minutes. We do as follows:
<span>P(t)=(80)<span>3^<span>t/90
But since you need t to be in hours, we have to convert 90 into hours which will give us the equation:
</span></span></span>P(t)=(80)3^t/1.5