A2 Unit 4 Review Quadratics

Front

What is the standard form of a quadratic equation?

Back

Front

How do you solve a quadratic equation using the Quadratic Formula?

Back

Front

What is vertex form of a quadratic equation?

Back

Front

How do you convert a quadratic equation from standard form to vertex form?

Back

To convert from standard form to vertex form, complete the square on the quadratic expression.

Front

What does the discriminant of a quadratic equation tell you?

Back

Front

What is the axis of symmetry for a quadratic function?

Back

Front

How do you find the vertex of a parabola given in standard form?

Back

Front

What is the effect of the coefficient 'a' in a quadratic function?

Back

The coefficient 'a' determines the direction of the parabola: if a > 0, the parabola opens upwards; if a < 0, it opens downwards.

Front

What is the significance of the y-intercept in a quadratic function?

Back

The y-intercept of a quadratic function is the point where the graph intersects the y-axis, found by evaluating the function at x = 0.

Front

How do you identify the roots of a quadratic equation graphically?

Back

The roots of a quadratic equation are the x-intercepts of the graph, where the parabola crosses the x-axis.