quadratics

What are the zeros of the function?

• (-2, 4) and (-2,0)

• (-4,0) and (0,0)

• (-4,4) and (0,0)

• (0,4) and (0,-4)

Answer explanation

the zeros are where the curve touches the x-axis (the ground) you write the zeros as points (x,y)

Tags

CCSS.HSF-IF.C.7A

What is the vertex?

• (-4,0)

• (-2,4)

• (0,0)

• (0,4)

Answer explanation

the vertex is the turning point of the parabola (the curve). It will be the highest or the lowest point written (x,y)

What is the axis of symmetry?

• x=-2

• x=0

• y=-2

• y=0

Answer explanation

the axis of symmetry is the line cutting the curve (parabola) in half, we describe it by writing x= and then writing the number it touches on the x axis.

Tags

CCSS.HSF-IF.C.7A

What is the domain?

• D: all real numbers

Answer explanation

Since the graph has arrows and goes on forever, all of the x's are included

so D: all real numbers

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

What is the y intercept?

• (0,-9)

• (-9,0)

• (-3,0)

• (3,0)

Answer explanation

the y intercept is where the parabola (curve) touches the y axis, written as a point (x,y)

Tags

CCSS.HSF-IF.C.7A

What is the range of the function?

• R: all real numbers

Answer explanation

the parabola opens up so we use the greater than sign

range is always describing the y's

the number written is the max or min ( in this case -9)

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

How many zeros?

• 0

• 1

• 2

• 3

Answer explanation

Tags

CCSS.HSF-IF.C.7A

How many zeros?

• 0

• 1

• 2

• 3

Answer explanation

Tags

CCSS.HSF-IF.C.7A

How many zeros?

• 0

• 1

• 2

• 3

Answer explanation

Tags

CCSS.HSF-IF.C.7A