Standard Form

This is the standard form of a quadratic function:

f(x) = ax² + bx + c

• True

• False

Identify a:

f(x) = 3x² + 4x - 5

• 3

• 4

• 5

• -5

Identify b:

f(x) = 3x² + 4x - 5

• 3

• 4

• 5

• -5

Identify c:

f(x) = 3x² + 4x - 5

• 3

• 4

• 5

• -5

Which is the vertex?

f(x) = x² + 16x + 71

• (-8, 7)

• (-8, 3)

• (8, 10)

• (16, -2)

Find the y-intercept.

f(x) = x² - 6x + 5

• (0, 8)

• (0, - 6)

• (5, 0)

• (0, 5)

Find the y-intercept.

f(x) = 2x² - 2x + 1

• (1,0)

• (-2,0)

• (0,1)

• (0, -1)

Find the vertex.

f(x) = -x² - 4x + 12

• (-2, 16)

• (2, 0)

• (2, 4)

• (-2, 4)

Find the axis of symmetry.

f(x) = x² - 8x + 15.

• x = -4

• x = 4

• y = 4

• y = -4

What is the y intercept?

f(x) = -8x² + 3x - 7

• (0, -8)

• (0, 3)

• (-8, -7)

• (0, -7)