Question

Classify the expression: −2x2 + 11

Quadratic expression
Linear expression
Cubic expression
Exponential expression

Answer 1

the classifications listed in the choices are based on the degree, or in other words, the highest exponent. an "exponential expression" would only apply if x itself is in the exponent, which it's not, so let's eliminate that choice.

next, what's the highest exponent in your expression?
if 1 --> linear
if 2 --> quadratic
if 3 --> cubic

which choice do you think is correct?