Vertex Form

If given the equation y +4= 3(x + 5)², what is the vertex of the parabola?

• (5, -4)

• (-5, -4)

• (-15, -4)

• (15, -4)

Which of the following is the correct equation for the given graph?

• y+4 = -(x + 2)²

• y+4 = -(x - 2)²

• y+4 = 3(x - 2)²

• y+4 = -3(x + 2)²

Tags

CCSS.HSF-IF.C.7A

Write an equation in vertex form if a=-2, h=3 and k=5

• y-5= -2(x - 3)²

• y-3 = -2(x -5)²

• y+3 = 2(x + 5)²

• y+4 = 3(x + 5)²

Which equation below represents a parabola that opens upward with a vertex at (0, -5)?

• y-5 = x²

• y +5= x²

• y = (x - 5)²

• y = (x + 5)²

What is the y-intercept of the function

y+8=2(x-3)²

• (0,-10)

• (0, 10)

• (0,-3)

• (3,0)

Tags

CCSS.HSF-IF.C.7A

Which Parabola has a vertex at (4, 9) and opens downward?

• y+9 = (x+4)²

• y-9=-(x+4)²

• y-9=-(x-4)²

• y-9=(x-4)²

What do we call the graph of a quadratic?

• line

• vertex

• equation

• parabola

Tags

CCSS.HSF-IF.C.7A

What are the green dots called?

• axis of symmetry

• vertex

• parabola

• roots or x-intercepts

Tags

CCSS.HSF-IF.C.7A

What is the green dashed line called?

• roots or x-intercepts

• parabola

• axis of symmetry

• line of dashes

Tags

CCSS.HSF-IF.C.7A

Convert f(x) = x² + 12x - 2 to vertex form?

• f(x) = (x + 6)² + 142

• f(x) = (x + 6)² - 34

• f(x) = (x + 6)² - 38

• f(x) = (x + 6)² + 34