Find Roots of Quadratics

What are the x-intercepts (solutions)?

• (-2,0) and (2,0)

• (0,-4)

• (-2,-4) and (2,-4)

Tags

CCSS.HSF-IF.C.7A

How many roots does y=x² - 8x + 16 have?

• one

• two

• none

How many roots does y=x² + 2x - 3 have?

• one

• two

• none

How many solutions does the parabola have?

• none

• one

• two

Determine the x-intercepts

• (8,0) and (4,0)

• (8,0) and (-4,0)

• (-8,0) and (4,0)

• (.25,0) (8,0) and (-4,0)

Tags

CCSS.HSF-IF.C.7A

How many roots does y=x²+2x+4 have?

• one

• two

• none

Find the zeros of this quadratic.

• b=4/5, b=3

• b=4, b=-3

• b=1/5, b=3

• b=4/5, b=-3

Tags

CCSS.HSA-REI.B.4B

What are the green dots called?

• axis of symmetry

• vertex

• parabola

• roots or x-intercepts

Tags

CCSS.HSF-IF.C.7A

What are the x- intercepts?

• x= 0 and x= -4

• x= 0 and x= 4

• y= 0

• x= 2

Tags

CCSS.HSF-IF.C.7A

What is another name for the x-intercepts of a quadratic?

• y-intercepts

• zeros

• x-axis

• none of these

Tags

CCSS.HSF-IF.C.7A