Which of the following ordered pairs is in the solution set for y = 8x - 1?
• (2,15)
• (2,81)
• (2, 16)
• (2,82)
The equation is y = 8x - 1. Let's substitute x = 2 into the equation to find the value of y for each ordered pair:
For (2, 15):
y = 8(2) - 1 = 16 - 1 = 15.
For (2, 81):
y = 8(2) - 1 = 16 - 1 = 15.
For (2, 16):
y = 8(2) - 1 = 16 - 1 = 15.
For (2, 82):
y = 8(2) - 1 = 16 - 1 = 15.
Only one ordered pair, (2, 15), satisfies the equation.