Introduction to Quadratics

How many solutions are there?

• 0

• 1

• 2

Does this open upwards or downwards?
y= -x² -4x -5

• up

• down

Tags

CCSS.HSF-IF.C.7A

What is the value of b?
y= 4x² -x +6

• 4

• 1

• -1

• 6

Does this open upwards or downwards?
y= -3x² + 6x - 6

• up

• down

Tags

CCSS.HSF-IF.C.7A

What is the y-intercept?
y= -3x² + 6x - 6

• -3

• 6

• -6

• 3

Tags

CCSS.HSF-IF.C.7A

What is the axis of symmetry?
y= -x² -4x -5

• 4

• -4

• 2

• -2

Which quadratic equation models the parabola shown?

• y = (x-2)(x-5)

• y = (x+2)(x+5)

• y = -(x+2)(x+5)

• y = -(x-2)(x-5)

Tags

CCSS.HSF-IF.C.7A

Standard form of a quadratic equation

• y=x²

• y=ax²+bx+c

• y=mx+b

• y=x

What is the green dot on this parabola called?

• vertex

• top of the mountain

• tip of the iceberg

• peak of the parabola

What is the vertex of this parabola?

• (−1, 3)

• (−3, 11)

• (−2, 5)

• (0, 5)