Question

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)

Answer 1

I don't think it represents a function

Answer 2

To find out, graph each point and do the vertical line test.

Answer 3

The vertical line test basically cannot have a same x value with different y values, so you don't really need to graph it.

Answer 4

I don't think that it has a function because 2 has both 1 and -2

Answer 5

Very good.

Answer 6

thanks can you help me with part b

Answer 7

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)

Answer 8

@RyleeC

Answer 9

f(5) = -(5) +8 = 3

Answer 10

basically at f(x) distance in this case f(5) he made 3 field goals.

Answer 11

so
f(5) =3

Answer 12

last one
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)

Answer 13

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, )

Answer 14

@RyleeC