Answer:
a) 41
b) -31
c) 25/3
Step-by-step explanation:
The instructions explain what a function is pretty clearly.
Basically, whatever is in the parentheses next to the
, you plug in to the expression that is the function.
ex: 

Okay, onto the problems:
a) 
First, plug in 14, since that is given:

and solve.


So, 41 is the answer to a.
b) Do the same thing you did in problem a. Plug in the number inside the parentheses and solve.



-31 is the answer to b.
c) For this problem, you have to do a bit of algebra.
First, take the base function f(x):

Then, set f(x) = 24:

and solve by isolating x.



25/3 is the answer to c.
Answer:
Alfonso didn't use a good estimation method
Step-by-step explanation:
Answer:
Step-by-step explanation:
-5y = -x + 15
5y = x - 15
y = 1/5x - 3
perp. -5
y - 5 = -5(x + 2)
y - 5 = -5x - 10
y = -5x - 5
Well there are a number of relationships, I'll name a few:
1) .7 <span>> .07 (.7 is Greater than .07)
2) .07 </span><span>< .7 (.07 is Less than .7)
3) .7 is ten times greater than .007
</span>
The after 9/4 seconds the football is at its highest point which is 81 feet if Lillian kicks a football. Its height in feet is given by h(t)= -16t²+72t
<h3>What is a parabola?</h3>
It is defined as the graph of a quadratic function that has something bowl-shaped.

Making perfect square:
![\rm h(t)= -[(4t)^2-72t+9^2 -9^2]](https://tex.z-dn.net/?f=%5Crm%20%20h%28t%29%3D%20-%5B%284t%29%5E2-72t%2B9%5E2%20-9%5E2%5D)
![\rm h(t)= -[(4t-9)^2 -81]](https://tex.z-dn.net/?f=%5Crm%20%20h%28t%29%3D%20-%5B%284t-9%29%5E2%20-81%5D)

The highest point will be when term (4t-9)² becomes zero
So the highest point = 81 feet, and it takes:
t = 9/4 seconds
Thus, the after 9/4 seconds the football is at its highest point which is 81 feet if Lillian kicks a football. Its height in feet is given by h(t)= -16t²+72t
Learn more about the parabola here:
brainly.com/question/8708520
#SPJ1