The given equation of parabola is
Which can also be written as
Here vertex (h,k) is (1,2)
And value of a is
Formula of focus is
Substituting the values of h,k and a, we will get
Therefore the correct option is the last option .
Jennifer would have $580 in her account after 24 months
a(x) = 20x + 100
the above function is a linear function
A linear function is a function that has a single variable raised to the power of 1.
100 is the constant
20 increases by m
a(x) is the dependent variable. Its value depends on the amount deposited per month and the number of months
The amount she would have after 24 months =
20(24) + 100 = $580
To learn more about linear functions, please check : brainly.com/question/20286983?referrer=searchResults
Answer:
snow
Step-by-step explanation:
For trapezoid, the area = (upper base + lower base) * height / 2
So area = (12 + (2*2 + 12) ) *13 / 2 = 182
This is like the equation of a line where y is the area, x is the time, and 8.5% is your slope. So you have y=0.085x+b (reason why I switched 8.5% into 0.085 is because that is how you write a percent as a decimal).So now you need to find what b is. So you know orignally the area is 2400km^2 at x=0 years (this is what it is initially).If you plug those numbers in you have:2400=0.085(0)+bThen after solving for b, you can write your equation as:y=0.085x+(whatever you found b to be)Then plug 13 in for x and you have your answer. y=-.085(13)+2400
