A2 Unit 2.1, Standard Form of a Quadratic Function

What is the general equation for a parabola in standard form?

• y = a(x − h)² + k

• y = ax² + bx + c

• y = a(x − p)(x − q)

Which letters typically represent the vertex of a parabola?

• (h, k)

• (x, y)

• (p, q)

• (a, b)

For the function f(x) = x² + 4x + 7, what are the values of a, b, and c?

a = ​ (a)  

b = ​ (b)  

c = ​ (c)  

• 1
• 4
• 7
• 0
• 2
• 3
• 5
• 6
• -1
• -2

Find the vertex for the following parabola:

y = x² + 4x + 7​

(​ (a)   ,​ ​ (b)   )

• -2
• 3
• -4
• -3
• -1
• 0
• 1
• 2
• 4

Find the vertex for the following parabola:

y = x² − 2x − 3

(​ (a)   ,​ (b)   )

• 1
• -4
• -3
• -2
• -1
• 0
• 2
• 3
• 4

Fill in the blank:

The y-intercept of a parabola is the point _____

• (0,a)

• (0,b)

• (0,c)

• (c,0)

• (b,2a)

Tags

CCSS.HSF-IF.C.7A

What is the vertex of the parabola y = x² + 4x + 1?

• (-2, -3)

• (2, 3)

• (0, 1)

• (-1, 0)

• (4, 1)

Solve the equation:

x(4 - 2) = 12 ÷ 3 × 2

• x = 1

• x = 2

• x = 3

• x = 4

Tags

CCSS.HSA.REI.A.1

What is the equation used to find the x-coordinate of the vertex?

Fill in the blank:

The axis of symmetry is the vertical line: x = _.

• h

• k

• a

• b

• c

Tags

CCSS.HSF-IF.C.7A