Answer:
a. Decay
b. 0.5
c. 4
Explanation:
If we have a function of the form

then
a = intital amount
b = growth / decay rate factor
x = time interval
If b > 1; then the equation is modelling growth. If b < 0, then the equation is modelling decay.
Now in our case, we have

Here we see that
inital amount = a = 4
b = 1/ 2 < 0, meaning the function is modeling decay
decay factor = b = 1/2
Therefore, the answers are
a. Decay
b. 0.5
c. 4
Answer:
9 min
Step-by-step explanation.
half of ten is 5 and half of 8 is 4 and 4 + 5 = 9
Horizontal assemtote
when the degrees of top and bottom are same, divide the highest powered coefients
10x^2 and 5x^2+1
both 2nd degree
10/5=2
horizontal assemtote at y=2
Price of a bag of fertilizer increased from $8 t0 $15
thus the price increase = $7
% increase = 7/8 * 100 = 87.5%
in decimal = 0.875 divide by 100
in fraction = 875/1000