Question

Which ordered pair is a solution to the equation y = 4x - 1?

A) (7, 2)
B) (0, 0)
C) (2, 7)
D) (0, 1)

Answer 1

A) x=7 y=2 => 2=4.7-1 ×

B) x=0 y=0 => 0=4.0-1 ×

C)x=2 y=7 => 7=4.2-1 √

D) x=0 y=1 => 1=4.0-1 ×

Answer 2

answer C

Explanation:

y = 4x - 1

checking answer A:

2 = 4(7) - 1

2 = 28 - 1

A does not work.

checking answer B:

0 = 4(0) - 1

0 = 0 - 1

Be does not work.

checking answer C:

7 = 4(2) - 1

7 = 8 - 1

C works.

checking answer D:

1 = 4(0) - 1

1 = 0 - 1

D does not work.