ALG 2 - Graphing Quadratics

What is the axis of symmetry?
f(x) = x² - 8x + 15.

• x = -4

• x = 4

• y = 4

• y = -4

What do we call the highest or lowest point of a quadratic?

• parabola

• vertex

• graph

• point

What is the vertex?
f(x) = -x² - 4x + 12.

• (-2, 16)

• (2, 0)

• (2, 4)

• (-2, 4)

What is the green dot on the parabola called?

• maximum

• minumum

• roots

• zeros

If a is negative in the function, which way does the parabola

• up

• down

• left

• right

Graph the quadratic.

• A

• B

• C

• D

What is the formula to find the axis of symmetry of a parabola?

• x = -b/2

• x = -b

• x = -b / (2a)

• x = -b / 2

Determine the vertex of the parabola:
y = 5x² - 20x + 13

• (5, -7)

• (-2, -7)

• (2, -7)

• (-7, -2)

Find the y-intercept of f(x) = 2x² - 2x + 1

• 2

• -2

• 1

• -1

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