Question

Which ordered pair is part of the equation y = 3x -4?

A. (1,1)
B. (2,2)
C. (3,6)
D. (4,9)

Answer 1

I substituted the ordered pairs into the equation.

(1,1)

1 = 3 * 1 - 4 The equation equals -1 for the y, this ordered pair does not
(y) (x) make this equation true.

(2,2)

2 = 3 * 2 - 4 This equation equals 2 for the y, this ordered pair makes this
(y) (x) equation true.

(3,6)

6 = 3 * 3 - 4 This equation equals 5 for the y, this ordered pair does not
(y) (x) make this equation true.

(4,9)

9 = 3 * 4 - 4 This equation equals 8 for the y, this ordered pair does not
(y) (x) make this equation true

So I would go with B. (2,2)