A 2 Midterm Review (ch 1 - 3)

Front

What happens to the graph of f(x) = x^2 when it is replaced with 2⋅f(x)?

Back

The graph becomes narrower.

Front

What is the equation of the parabola when the 'a' value is 2/27 and the vertex is at (-2, 1)?

Back

Front

Solve for x: |2x - 1| = 9

Back

x = 5 and x = -4.

Front

What is the y-intercept of the function represented by the point (0, 4)?

Back

The y-intercept is (0, 4).

Front

True or False: A parabola is the set of all points equidistant from the focus and the directrix.

Back

True.

Front

What is the effect of multiplying a function by a factor greater than 1 on its graph?

Back

The graph becomes narrower.

Front

What is the vertex form of a parabola?

Back

Front

How do you find the x-intercepts of a quadratic function?

Back

Set the function equal to zero and solve for x.

Front

What is the standard form of a quadratic equation?

Back

Front

What does the 'a' value in a quadratic function determine?

Back

The 'a' value determines the direction and width of the parabola.