Solving Quadratics

• -2, 4
• -8
• ±8
• No real solution

Tags

CCSS.HSA-REI.B.4B

What is another word for zeros?

• y-intercepts
• roots
• vertex
• axis of symmetry

Tags

CCSS.HSF-IF.C.7C

What are the roots of the function? 

• {x|x = 4, -1}
• (-4, 1)
• {x|x = -4, 1}
• (4, 0) (-1, 0)

Tags

CCSS.HSA-SSE.B.3B

CCSS.HSF-IF.C.8A

What are the x-intercept/s of the function? 

• {x|x = 3}
• {x|x =-3,3}
• (3, 0)
• (-3, 0)&(3, 0)

Tags

CCSS.HSF-IF.C.7A

True or false:
The solutions, roots, x-intercepts, and zeros of a quadratic equation are all the same thing.

• True
• False, because the solution and root are the same but the x-intercept and zero are different
• False, because the x-intercept and root are the same but the zero and solution are different
• False, they are all different

Tags

CCSS.HSA.APR.B.3

CCSS.HSA.REI.B.4

• ± 1
• ± 4/3
• ± 3/4
• No real solution

Tags

CCSS.8.EE.A.2

What is the discriminant?

• b²-4ac
• b²/2a
• 4ac
• b²±4ac

Tags

CCSS.HSA-REI.B.4B

What is this?

• This is the speed of light formula.
• This is the quadratic formula.
• This is the zero product property.
• This is scary.

Tags

CCSS.HSA-REI.B.4B

What should you do first in solving this equation?
x² + 6x - 13 = 3

• Get factored form
• Write down: a=1, b=6, c=-13
• Make it equal 0 by subtracting 3 on each side
• Type it all in a calculator.

Tags

CCSS.HSA-REI.B.4B

• ±81
• ±9
• ±3
• No real solution

Tags

CCSS.8.EE.A.2