EF 63-John Derry

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EF-63 John Derry

In this problem it is testing the ability to find the function notation and function.

In A,the function notation would be x^2+2x+1. The function would be plugging in 3 and solving what the number will be after the function is applied to the function notation.
So replace x with three in the equation
x^2+2x+1
3^2+2(3)+1
Next you follow order of operations.
9+6+1
So the finally answer would be 16.

In B, the function would be x^2+2x+1. The function would be plugging in -4 and solving what the number will be after the function is applied to the function notation.
First replace the x with -4.
x^2+2x+1
-4^2+2(-4)+1
Then do the order of operations.
16-8+1
So, finally the answer is 9.

In C, the function would be x^2+2x+1. The function would be plugging in -22.872 and solving what the number will be after the function is applied to the function notation.
First you replace x with -22.872.
x^2+2x+1
-22.872^2+2(-22.872)+1
Then do order of operations.
-523.128-45.744+1
So, finally the answer is -567.872.




EF - 73
Sophia Moreno: 14

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A)

g(-5.1)
.01(-5.1)^2 - 6.03(-5.1) +17.1
.01(26.01) + 30.753 +17.1
.2601 + 47.853
48.1131

B)

g(6.23)
.01(6.23)^2 - 6.03(6.23) + 17.1
.01(38.8129) - 37.5669 + 17.1
.388129 - 20.4669
-20.078771

Further Discussion

Does the function depend on if the number is negative or positive?



Olivia Billbrough
Functions: are the relationship between an input and an output. what ever you put in an equation has one output. its the relationship between two variables.

example:

f(x)=2x-7
f(x)=2(0)-7
fx=-7

graph:
Function_graph_EF-103_Olivia_Billbrough.png