Algebra Unit 7 Test Review Quadratic Functions

Write the following in vertex form:

• y = (x + 3)² + 5

• y = (x - 3)² + 5

• y = (x + 5)² + 3

• y = (x - 5)² + 3

Write the following in vertex form:

• y = -(x + 1)² - 3

• y = -(x - 1)² - 3

• y = -(x - 1)² + 3

• y = -(x - 3)² - 1

Write the following in vertex form if given:

Vertex: (6, 3) and a point (7, -10)

• y = -13 (x - 6)² + 3

• y = -4 (x - 6)² + 3

• y = 7 (x - 6)² + 3

• y = 12 (x - 6)² + 3

Write the following in vertex form if given:

Vertex: (3, 1) and a point (0, -71)

• y = 14 (x - 3)² + 1

• y = -8 (x - 3)² + 1

• y = -23 (x - 3)² + 1

• y = 4 (x - 3)² + 1

Write the following in vertex form if given:

Vertex: (2, 3) and a point (4, 5)

• y = ⅓ (x - 2)² + 3

• y = 9 (x - 2)² + 3

• y = ½ (x - 2)² + 3

• y = -2 (x - 2)² + 3

Given the equation y = 3(x + 5)² - 4,

what is the vertex of the parabola?

• (5, -4)

• (-5, -4)

• (-15, -4)

• (15, -4)

A parabola is concave down when a is:

• negative

• positive

• 0

Tags

CCSS.HSF-IF.C.7A

Given the equation: y = -(x - 4)² - 3,

does this parabola have a maximum or minimum value?

• Maximum

• Minimum

Tags

CCSS.HSF-IF.C.7A

y = 3(x + 5)² - 4, what is the y-intercept of the parabola?

• (0, 0)

• (0, 71)

• (-5, -4)

• (15, -4)

Tags

CCSS.HSF-IF.C.7A

If the blue graph is f(x) = x²

then the red must be...

• g(x) = x² - 5

• g(x) = x² + 5

• g(x) = (x - 5)²

• g(x) = (x + 5)²