Determina la ecuación de cada una de las siguientes parábolas:
81 Vértice (0,0); foco (1,0)
182. Vértice (0, 0); foco (0, - 2)
183. Vértice (0,0); foco (0,4)
184 Vértice (0,0); directriz y = 1
(185, Vértice (0, 0); directriz x
-1
180. Vértice (0,0); directriz x-
1
2
196.
-
107

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

Find the number of real number solutions for the equation. x2 + 5x + 7 = 0 0 cannot be determined 1 2

If the ratio of sum of the first m and n terms of an ap is m2 : n2 , show that the ratio of its mth and nth terms is (2m − 1) : (2n − 1).