contestada

Match the parabolas represented by the equations with their foci. Tiles y = -x2 + 4x + 8 y = 2x2 + 16x + 18 y = -2x2 + 5x + 14 y = -x2 + 17x + 7 y = 2x2 + 11x + 5 y = -2x2 + 6x + 5 Pairs Focus Equation of Parabola (-2.75, -10) arrowBoth (2, 11.75) arrowBoth (-4, -13.875) arrowBoth (1.25, 17) arrowBoth

Respuesta :

YellowGold
Given:
y = -x2 + 4x + 8
y = 2x2 + 16x + 18
y = -2x2 + 5x + 14
y = -x2 + 17x + 7
y = 2x2 + 11x + 5
y = -2x2 + 6x + 5 

Standard formula : y = ax² + bx + c  ;  -(b/2a) is the x-coordinate of the vertex. Substitute the value of x to find the value of y.

Otras preguntas