What are the formulas for exponential growth and decay?
2 answers:
You might be interested in
Answer:
April
Step-by-step explanation:
To solve, you find the maximum of the polynomial function. You can do this by either graphing or plugging in the values in a T chart.
I graphed the function, provided down below.
As you can see, the highest value in the graph is the middle most point, aka (4,1). Count down the months of the year to 4, and you'll find that April is the 4th month of the year.
The given linear system is:
The question is asking to solve using elimination. When eliminating, you can either eliminate x or y. In this system, y is much easier to eliminate. The y variable in both equations are 7y. To eliminate, one of them has to be negative, so multiply one of the equations by -1.
I will be multiplying the second equation by -1.
Rewrite the system:
Subtract:
Lastly, you need to leave the variable x alone. The variable is currently -6x or -6 times x. To remove it, you need to do the opposite of it, which is dividing by -6.
Now that you have the value of x, substitute it into one of the equations to find y. I will be substituting it into the first equation.
Open the parentheses and multiply:
Move 5 to the other side to leave the variable alone:
You will be subtracting since you're "removing" it by doing the opposite of it.
Lastly, divide both sides by 7 to leave y alone.
The answer is (1, 4).