Enhanced Unit 3 Quadratics - CIA #6 Practice

Front

What is the vertex of the quadratic function y = (x + 4)² - 6?

Back

The vertex is (-4, -6).

Front

How do you find the vertex of a quadratic function in vertex form?

Back

The vertex can be found directly from the vertex form y = a(x - h)² + k, where (h, k) is the vertex.

Front

What is the square root method for solving quadratic equations?

Back

The square root method involves isolating the squared term and then taking the square root of both sides to solve for x.

Front

Solve the equation 2(x + 1)² = 32 using the square root method.

Back

x = 3 or x = -5.

Front

What is the y-intercept of the quadratic function y = 2x² + 6x + 7?

Back

The y-intercept is (0, 7).

Front

How do you find the y-intercept of a quadratic function?

Back

The y-intercept can be found by evaluating the function at x = 0.

Front

Solve the quadratic equation (1/4)(x + 6)² - 8 = 17.

Back

x = 4 and x = -16.

Front

What are the zeros of a quadratic function?

Back

The zeros are the x-values where the function equals zero.

Front

Find the zeros of the function y = (x - 3)(x + 8).

Back

The zeros are x = 3 and x = -8.

Front

What is the standard form of a quadratic function?

Back

The standard form is y = ax² + bx + c.