Rewriting Quadratic Functions

What is the value of h and k in the function y = 2x² - 4x + 4?

• h = -1, k = 2

• h = 1, k = -2

• h = 1, k = 2

• h = -1, k = -2

Answer explanation

What is the vertex form of the function y = 2x² - 8x + 4?

Answer explanation

Answer explanation

Convert to vertex form.

• y=3(x+1)² - 8

• y=3(x-1) ² - 8

• y=3(x+2)² - 8

• y=3(x-2)² - 8

What is the vertex of
f(x) = 2(x - 5)² + 12

• (-5, -12)

• (5,-12)

• (5, 12)

• (-5, 12)

Which equation matches the graph?

• f(x) = (x - 1)(x - 3)

• f(x) = (x + 1)(x + 3)

• f(x) = (x + 2)(x - 1)

• f(x) = (x + 3)(x - 1)

Tags

CCSS.HSA-SSE.B.3B

CCSS.HSF-IF.C.8A

Write an equation in Factored Form, whose solutions are 7 and 3.

• y = (x - 7)(x - 3)

• y = (x + 7)(x + 3)

• y = (x + 7)(x - 3)

• y = (x - 7)(x + 3)

Tags

CCSS.HSA-SSE.B.3B

CCSS.HSF-IF.C.8A

Find the zero(s) of the function: y = 2/3x² + 4/5x - 3

• No Solution

• -2.80 and 1.60

• -2.80 only

• 1.60 only

Tags

CCSS.HSA-SSE.B.3B

CCSS.HSF-IF.C.8A

Tags

CCSS.HSA-SSE.B.3B

CCSS.HSF-IF.C.8A

What is the method called for rewriting a quadratic expression in vertex form?

• Completing the Square

• Factoring

• Expanding

• Simplifying