Which set of ordered pairs represents a function? O {(7,4), (3,8), (-4,-4), (0,4)}
O {(-8,0), (-5,6), (-8,1), (-6,5)}
O {(-5,1),(3,-7), (2, -4), (2,7)}
O {(4,2), (4, -9), (9, -6), (7,1)}

step-by-step explanation:

-7

step-by-step explanation:

x^2 + 18x + 74 = (x + 9)^2 - 81 + 74

= (x + 9)^2 - 7.

so q = -7.

the answer is option a you would get more money.it would be $250.

step-by-step explanation:

for option b 200/2=100=50% 100/2=50=25% 50/5=10=5% it would be $220