Match the parabolas represented by the equations with their foci. y = -x2 + 4x + 8 y = 2x2 + 16x + 18 y = -2x2 + 5x + 14 y = -x2 + 17x + 7 y = 2x2 + 11x + 5 y = -2x2 + 6x + 5 focus equation of parabola (-2.75, -10) arrowright (2, 11.75) arrowright (-4, -13.875) arrowright (1.25, 17) arrowright

Type the correct answer in the box. consider the system of linear equations below. rewrite one of the two equations above in the form ax + by = c, where a, b, and c are constants, so that the sum of the new equation and the unchanged equation from the original system results in an equation in one variable.