A quadratic function is a polynomial function of degree two, which means the highest power of the variable (usually x) is two. The general form of a quadratic function is:
☐ I can factorise any quadratic (including ax^2 + bx + c where a ≠ 1 ). ☐ I can complete the square with fractions and surds. ☐ I know the three discriminant cases ( >0 , =0 , <0 ) and can apply them to find unknown coefficients. ☐ I can solve quadratic inequalities and represent the solution on a number line or in set notation. ☐ I can find the vertex, line of symmetry, and intercepts of any quadratic graph. ☐ I can model projectile motion, area problems, and profit functions using quadratics. integral maths quadratic functions topic assessment answers
If the question involves area or time, did you discard the negative root? 5. Final Tips for Success A quadratic function is a polynomial function of
So close the 15 tabs searching for “answers.” Open Desmos. Grab a pen. And solve it properly—once. ☐ I know the three discriminant cases (
: Handle quadratic-style equations like or those involving fractional indices.
x = (-(2) ± √((2)^2 - 4(1)(1))) / 2(1) = (-2 ± √(4 - 4)) / 2 = (-2 ± √0) / 2 = -1
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