Quadratic

Determine whether each of the following expressions is a quadractic expression in one variable.

• YES

• NO

Determine whether each of the following expressions is a quadractic expression in one variable.

• YES

• NO

Determine whether each of the following expressions is a quadratic expression in one variable.

• YES

• NO

Determine whether each of the following expressions is a quadratic expression in one variable.

• YES

• NO

Which answer choice describes  y = -3x² +7x - 2 accurately?

• opens up with a maximum

• opens up with a minimum

• opens down with a maximum

• opens down with a minimum 

• 1

• 3

• 2

• 5

• 4

f(x) = (a)   x² + ​​ (b)   x + ​ ​ (c)  

• a

• b

• c

• d

• x

• 1

• 3

• 2

• 5