Question

I need help in my algebra class?

Answer 1

What exactly is the question?

Answer 2

1. The table below shows the values of y for each value of x.
X Y
-1 0
1 -1
2 1
2 -2

Part A: Does the table represent a function? Justify your answer by using the values shown in the table (4 points)
Part B: The function f(x) shown below represents the number of field goals Frank made at different distances, x, in meters, from the post.
F(x) = -x + 8
Calculate and interpret the meaning for f(5). (4 points)
Part C: Write an ordered pair to represent the input and output of the function in Part B when Frank is at a distance of p meters from the post. (2 points)
Part A:
Is the table a function? No
Justify your answer- use specific values in your answer.
-1 +1=0
1+1=2
2+2=4
2+2=4
Part B: Calculate f(5).
What does f(5) mean?
Part C: X represents meters from the post.
If we replace x with p, what is the y-coordinate? Write your ordered pair below:
(p, )
I've done some but I don't understand. Its five questions this is one of them

Answer 3

@LeilaniLane please I need help

Answer 4

Part A:
Okay, so in order for it to be a function each input, or X value must be paired with exactly one output or Y value. Since none of the Y values are repeated, this means its a function.

Answer 5

Ok

Answer 6

Wait if none of the y values match up with any of the x values doesn't that mean its not a function??

Answer 7

Part B:
F(x) = -x + 8
All you do is simply fill in the missing values and solve. If F(x) is F(5) this means X = 5
So... F(5) = -5 + 8

Part A: (Again)
No, that's not what I said. There just can't be several Y values. For example: If you had X 0 then Y 1, but also X 1 equals Y 1... that couldn't be a function. However X 0 = Y1 and X 1 = Y 2 is a function. Do you understand?

Answer 8

Oh ok!

Answer 9

Sorry to bother but in part A the justify your answer, is that correct?

Answer 10

Oh ok!

Answer 11

brb

Answer 12

Um, not quite. You should add the justification to your answer, but your prove that your justification is correct by using the ordered pairs. You point out that for example that X -1 = Y 0, well you don't see another Y 0. There is only one out put for each input, so you show that by "using the values shown in the table." Okay.

Answer 13

ok im back

Answer 14

So I type in the ordered pairs as the justify part?

Answer 15

Hey I gtg but thanks anyway

Answer 16

Sorry. Yeah... sorta. Anyway, thanks!