Question

Identify the quadratic function from the choices below whose parabola opens upward.
A. y= 3x-5x^2
B. y= 4x^2-6x-2
C. y= 7x-3x^2+7
D. y= 100-4x^2

Answer 1

Parabola
y = ax² + bx + c
opens up if a > 0 and down if a < 0.

Answer 2

so u just have to find 'a' values

Answer 3

thank you !:)

Answer 4

welcome ^_^

Answer 5

Would it be B? @hartnn

Answer 6

yes! :)