The answer to this question is A
+3, -6, +9 etc.
10, -11, 13
By definition, A quadratic function<span> is one of the form f(x) = ax</span>2<span> + bx + c, where a, b, and c are numbers with a not equal to zero.
In this case both a and b are 0 so it is not a quadratic function</span><span />
Step-by-step explanation:
first use the formula box slope m then use y intercept equestion