Identify Quadratic Forms

What information can I find from this form of the equation? f(x ) = x2 - 5x + 12

• x-intercepts: (-5, 0)(12, 0)

• y-intercept: (0, 12)

• vertex: (-5, 12)

What can we find easily in factored form?

• y-intercept

• vertex

• zeros/x-intercepts

What can we find easily in vertex form?

• vertex

• y-intercept

• zeros/x-intercepts

Which of the following equations represents the standard form of a quadratic function?

Which of the following equations represents the vertex form of a quadratic function?

What causes the graph of y = x² to open downward?

• multiply the x² by a fraction

• multiply the x² by a decimal

• multiply the x² by a negative number

• multiply the x² by a number greater than 1

Identify the vertex and whether the graph opens up or down.

• (5, 2); opens up

• (5, 2); opens down

• (-5, 2); opens up

• (-5, 2); opens down

Identify A, B, and C if y=3x²-8+5x

• A=3, B=5, C=-8

• A=3, B=-8, C=5

• A=3x², B=5x, C=-8

• A=3x² , B=-8, C=5x

The parabola y = 1/2(x + 4)² - 3 will have a vertex of

• (4, - 3)

• (- 4, 3)

• (- 4, - 3)

• (4, 3)