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Grade 8 Chapter 9
Quadratic Functions and Equations
Question | Answer |
---|---|
axis of symmetry | A line that divides a plan figure or a graph into two congruent reflected halves. |
completing the square | A process used to form a perfect-square trinomial. |
discriminant | b^2 - 4ac |
maximum | The y-value of the highest point on the graph of the function. |
minimum | The y-value of the lowest point on the graph of the function. |
parabola | The shape of the graph of a quadratic function. |
quadratic equation | An equation that can be written in the form ax^2 + bx +c = 0, where a,b, and c are real numbers and a is not equal to zero. |
quadratic function | A function that can be written in the form f(x)= ax^2 + bx + c, where a,b, and c are real numbers and a is not equal to zero. |
vertex | The highest or lowest point on the parabola. |
zero of a function | For the function f, any number x such that f(x) = 0 |