Question

Dennis takes care of private swimming pools. He charges $50 to travel to a home and then $35 per hour. The equation t = 50 + 35h models the total charge t for h hours of service. Which ordered pair (h, t) is NOT a solution for the equation?

(2, 120)

(6, 335)

(9, 365)

(8, 330)

Answer 1

Just plug and chug to see which ones fit

120 = 50 + 35(2) → 120 = 50 + 70 → 120 = 120 yes this one works

335 = 50 + 35(6) → 335 = 50 + 210 → 335 = 260 no this doesn't work, and you don't need to go further because the question asks which ordered pair isn't a solution, which is (6, 335)