Which ordered pair is not a solution of f(x) = 2x + 9?

(3, 14)
(7, 23)
(0, 9)
(2, 13)

Monica build a remote control toy airplane for science project to test the plane she launched it from the top of a building the plane travel a horizontal distance of 50 feet before landing on the ground a quadratic function which models the height of the plane in feet relative to the ground at a horizontal distance of x feet from the building is shown

Which of the following scenarios demonstrates an exponential decay

Which of these angles are supplementary? a. 100o and 90o b. 78o and 102o c. 54o and 146o d. 12o and 78o