U2 Exam #2 Review

Front

What is the first step in solving the equation x² + 6x - 13 = 3?

Back

Subtract 3 from both sides.

Front

Where is the axis of symmetry for a parabola with vertex at (-3, 2)?

Back

x = -3

Front

What is the vertex form of a quadratic equation?

Back

y = a(x - h)² + k

Front

What effect does the 'h' value have in vertex form?

Back

Translates Left/Right

Front

What effect does the 'k' value have in vertex form?

Back

Translates Up/Down

Front

What is the standard form of a quadratic equation?

Back

y = ax² + bx + c

Front

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

Back

Use the formula h = -b/(2a) and k = f(h).

Front

What does the 'a' value indicate in the vertex form of a quadratic?

Back

It indicates the direction of the parabola (upward if a > 0, downward if a < 0).

Front

What is the effect of a negative 'a' value in a quadratic function?

Back

It flips the parabola over the x-axis.

Front

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

Back

Set x = 0 and solve for y.