Question

The function ƒ(x ) = -3x + 5 is represented by which set of ordered pairs?

1.{(-1, 8), (0, 5), (2, -1), (3, -4)}
2.{(-1, 9), (0, 2), (1, 7), (2, 13)}
3.{(-2, 8), (-1, 16), (0, 14), (1, 2)}

Answer 1

Answer:1

Explanation:

Just substitute the ordered pair and see which make the function work.

Answer 2

The correct answer is the first set {(-1, 8), (0, 5), (2, -1), (3, -4)}

Explanation:

In order to determine if the set works, input each ordered pair to see if the statement ends up true. The first two ordered pairs are done below.

(-1, 8)

f(x) = -3x + 5

8 = -3(-1) + 5

8 = 3 + 5

8 = 8 (TRUE)

(0, 5)

f(x) = -3x + 5

5 = -3(0) + 5

5 = 0 + 5

5 = 5 (TRUE)