Question

Which equation is NOT a quadratic equation?






A.

y = x2 + 6x - 5





B.

y = 2x + 5





C.

y = 2x2 + 5





D.

y = 4x2

Answer 1

a quadratic has to have an \[x^2\]

in it,

so the one that does not, is B. y = 2x + 5

Answer 2

b becasue its not X^2 quadratics are always 2nd degree equations with X^2 in them

Answer 3

okay thanks guys:)