Quadratic equations

The graph of a quadratic function is called

• a line
• a hyperbola
• a parabola
• a cubic

Tags

CCSS.HSF-IF.C.7A

Standard form of a quadratic equation

• y=x²
• y=ax²+bx+c
• y=mx+b
• y=x

Tags

CCSS.HSA.CED.A.1

3x² - 4 is a quadratic

• true
• false

Tags

CCSS.HSA.REI.B.4

What are the green dots called?

• axis of symmetry
• vertex
• parabola
• roots or x-intercepts

Tags

CCSS.HSF-IF.C.7A

Factor x²-6x-40

• (x-10)(x+4)
• (x+10)(x-4)
• (x-8)(x+5)
• (x+8)(x-5)

Tags

CCSS.HSA.REI.B.4

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

Solve
x² + 13x + 12 = 0

• x = -12, -1
• x = 12, 1
• x = 13, 1
• x = -13, -1

Tags

CCSS.HSA-REI.B.4B

ax²+bx+c=0  is the standard form of a quadratic equation.

• True
• False

Tags

CCSS.HSA.REI.B.4

CCSS.HSA.CED.A.1

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

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

• (3,0)
• (-3,0)
• (9,0) & (-9,0)
• (-3, 0) & (3, 0)

Tags

CCSS.HSF-IF.C.7A

What are the solutions of this graph?

• x=-2 and x=3
• x=-1/2 and x=-6
• x=-2 and x=-6
• x=3 and x=-6

Tags

CCSS.HSA.REI.B.4

CCSS.HSA.APR.B.3

CCSS.HSA.REI.D.11