Answer:
The answer is c. f(n)=4n+1
Step-by-step explanation:
In the function of the answers, n is the input and f(n) is the output. So the ordered pairs needs to be at the form (n,f(n))
Additionally, in the ordered pairs given in the question, the first term is the input and the second term is the output. For example in the ordered pair (1,5), 1 is the input and 5 is the output.
So, if we replace n by 1, f(n) needs to be 5. This condition is only satisfied on option c. That's is also prove for every ordered pair as:
For (1,5)
if n=1 then:
f(n)=(4*1)+1=5
For (2,9)
if n=2 then:
f(n)=(4*2)+1=9
For (3,13)
if n=3 then:
f(n)=(4*3)+1=13
For (4,17)
if n=4 then:
f(n)=(4*4)+1=17
Finally, the functions that best represents the rule that the calculator uses to display the outputs is f(n)=4n+1
Stereo or mono?
Mono is an indicator that the word following is indicating one of something or a single part. Which one has just one expression?
First problem
The recipe is written for 3 dozen cookies.
Hew wants to make 12 dozen cookies.
12 dozen is 4 times 3 dozen, so multiply each amount by 4 to make 12 dozen cookies.
4 eggs * 4 = 16 eggs
1/2 cup chocolate chips * 4 = 2 cups chocolate chips
Second problem
Let's start from the end.
There were 40 apples left on the tree.
Sally picked 1/3 of the apples that were left for her.
40 apples were left after Sally finished.
Since Sally picked 1/3 of the apples, she left 2/3 of the apples on the tree.
2/3 of the apples were 40 apples. 1/3 is 20 apples, so the number of apples left for Sally is 60 apples. Before Sally started, there were 60 apples.
Bill had picked 1/2 the apples, which means he left half of them. He left 60. That means to original number was 120 apples.
Answer: 120 apples.
B. 15/8 because you count all of it
