Act Prep Quadratics

If given the equation

y = (x + 5)² - 4,

what is the vertex of the parabola?

• (5, -4)

• (-5, -4)

• (5, 4)

• (-5, 4)

What is the equation of this graph?

• f(x) = (x -5)² + 1

• f(x) = (x - 1)² - 5

• f(x) = (x + 1)² - 5

• f(x) = (x + 5)² +1

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

• left 8

• right 8

• up 8

• down 8

Which equation correctly represents the graph shown?

Tags

CCSS.HSF-IF.C.7A

Which equation correctly represents the graph shown?

Tags

CCSS.HSF-IF.C.7A

Solve using Elimination Method:

x - y = 11

2x + y = 19

• (10,-1)

• (-1,10)

• (3,-4)

• (6,7)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve using Elimination Method:

4x+ 9y = 28

-4x -y = -28

• (-7,0)

• (6,0)

• (-6,0)

• (7,0)

• (6,7)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What is the vertex?

• (4,-4)
• (2,0)
• (0,2)
• (6,0)

Find the vertex of  y = -x² - 4x + 12.

• (-2, 16)
• (2, 0)
• (2, 4)
• (-2, 4)