Question

Question 3 Multiple Choice Worth 4 points)

(07.04A)
If y = 6x - 3, which of the following sets represents possible inputs and outputs of the function represented
ordered pairs?
{(0, 3), (1, -9), (2, -15)}
{(0, -3), (2, 15), (4, 21)}
{0, -3), (2, 9), (4, 21)}
{(0, 3), (-2, 15), (4, 21)}

Answer 1

{0, -3), (2, 9), (4, 21)}

Explanation:

if x = 0 ⇒ y = 6x - 3 = 6(0) - 3 = 0 - 3 = -3

if x = 2 ⇒ y = 6x - 3 = 6(2) - 3 = 12 - 3 = 9

if x = 4 ⇒ y = 6x - 3 = 6(4) - 3 = 24 - 3 = 21