Intro to Quadratics

What is the vertex of the quadratic function:
y = x² - 6x + 11?

• (3,2)

• (-3,-2)

• (-3,2)

• (3,-2)

What is the vertex of y=x²+4x+3?

• (2,1)

• (-2,1)

• (0,0)

• (-2,-1)

Find the axis of symmetry for
f(x) = x²- 8x + 15.

• x = -4

• x = 4

• y = 4

• y = -4

When y=x²+7x-2 is graphed, where is the vertex located?

• (-1, -8)

• (-3.71, -14.51)

• (-3.5, -14.25)

• (0,-2)

f(x) = 3x² - 4 is a quadratic function

• true

• false

Identify the leading coefficient of the following quadratic function:
 y = 2x ² − 4x − 2

• 2

• 4

• -4

• -2

Which of the following is NOT a quadratic function

• f(x) = -3x²

• f(x) = -5x - 3x²

• f(x) = 3x - 4x² + 5

• f(x) = 3x + 5

Identify the leading coefficient of the following quadratic function:
y = x ² + 16x + 64

• 2

• 1

• 16

• 64

Identify the leading coefficient of the following quadratic function:
y = −x ² + 18x − 75

• 18

• 1

• -75

• -1

Which is a zero of the graph?

• 0

• -1

• 1.5

• -3

Tags

CCSS.HSF-IF.C.7A