Question

MEDAL + TESTIMONIAL

Part B: The function f(h) shown below represents the number of tennis matches Diana won each month when she practiced tennis for h hours every day.

If f(h) = 3h + 1

Calculate and interpret the meaning of f(3). (4 points)

Part C: Write an ordered pair to represent the input and output of the function in Part B when Diana practices tennis for b hours every day. (2 points)

Answer 1

I have Part B figured out. I just don't know Part C. If you need my work for Part B, tell me.

Answer 2

Tell me what you got for Part B

Answer 3

Okay. This is what I put:

Part B:
Well, if you change the h to 3, you have to change all h to 3, so the new equation would loo like this:

f(3) = 3 * 3 + 1

Now, usually, because the whole f(3) thing confuses me, I remind myself that f(3) = h. So, I just solve if I were solving for h.

y = 3 * 3 + 1
y = 9 + 1
y = 10
f(3) = 10

Answer 4

Part B is correct. You found f(3) correctly. But they also wanted you to interpret the meaning of f(3) = 10.

Answer 5

Hm...I don't know about that. I think that he played tennis for 10 hours?

Answer 6

f(h) = 3h + 1
For part C, evaluate f(b) = ?
just put h = b in f(h) = 3h + 1

Answer 7

Really, @LanaPhillips14 it seems that you do not know how to leave someone alone.

Answer 8

So, I just re-write the equation?

Answer 9

omg

Answer 10

Please stop distracting Lana.

Answer 11

In f(h) = 3h + 1 h is hours of tennis Diana practiced each day and
f(h) is the number of matches Diana won that month.
So h = 3, f(3) = 10 means id Diana practiced 3 hours of tennis each day and she won 10 matches that month.

Answer 12

Okay, now I get it - thank you! I have one more.

Answer 13

A truck weighs 4500 kg. The truck is packed with bales of wool, each weighing 150 kg.

Part A: Write a function to show the total weight of the truck f(w) when it is loaded with n bales of wool. (4 points)

Answer 14

For Part C, put h = b in f(h) = 3h + 1
f(b) = 3b + 1
Put the answer as an ordered pair. So the answer is (b, 3b+1)

Answer 15

Okay. Can you answer my other question?

Answer 16

Does the second sentence say f(w) ?

Answer 17

Yes, it does.

Answer 18

1 bale of wool weighs 150 kg.
So how much would n bales of wool weigh?

Answer 19

n * 150kg

Answer 20

Correct. Truck weighs 4500 kg.
So what is the total weight of the truck with n bales of wool?

Answer 21

4500?

Answer 22

OOPS/

Answer 23

4500 + 150N

Answer 24

Correct.

Answer 25

That is your function except put lowercase n. 4500 + 150n

Answer 26

I got confused, I am so sorry. I though it was saying that the total wieght of the truck and the bags were 4500 and ti had to equal that.

Answer 27

Thanks you so much! :-D

Answer 28

Glad to help.