Jojo9612 Jojo9612 16-06-2024 Mathematics Answered Express y=-4x2+12x-9 in the form: y=a(x-h)2+k a. y=-4(x-3/2)2+9 b. y=-4(x-3/2)2-9 c. y=-4(x-3)2 d. y=-4(x-3/2)2