Graphing Quadratics

What is the vertex of this parabola?

• (−1, 3)
• (−3, 11)
• (−2, 5)
• (0, 5)

What is the y-intercept of this parabola?

• (−1, 3)
• (−3, 11)
• (−2, 5)
• (0, 5)

Tags

CCSS.HSF-IF.C.7A

Where is the axis of symmetry for this parabola?

• x = −1
• x = 0
• y = 3
• x = −3

What is the axis of symmetry?
y = 3x² - 6x + 4

• x=1
• x=-6
• x=2
• x=-1

Does the equation open up or down? 
Y = -3x² +7x - 2

• up
• down
• Neither; it opens to the right.
• Neither; it opens to the left.

When a parabola opens "down" the vertex is known as a __________.

When a parabola opens "up" the vertex is known as the _________.

Tags

CCSS.HSF-IF.C.7A

Find the vertex  y = x² - 2x - 5

• V(-2, 10)
• V(-1, 15)
• V(1, -6)
• V(1, -12)

What is the vertex of y= x² - 8x + 14 ?

• (2, 4)
• (-4, -2)
• (4, -2)
• (-2, 4)

Find the vertex of the quadratic:
y = -2x² + 4x + 3

• (0, 3)
• (-1, 5)
• (1, 5)
• (1, -5)