Question

Which is not the quadratic inequality?

Answer 1

Answer:

A.

Step-by-step explanation:

A quadratic inequality looks like a quadratic equation, but with signs

<, >, ≤, or ≥

instead of sign =

You are given one equation (the first one, because the sign is =) and two inequalities (the last two beacause the signs are < and > respectively).

Thus, correct option is A,

$y=7x^2+5x-7$

is not a quadratic inequality (it is a quadratic equation)