CPM CCA Chapter 8 Closure

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

What are the zeros?

• x= 0 and x= -4
• x= 0 and x= 4
• y= 0
• x= 2

What is another word for zeros?

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

Tags

CCSS.HSA.APR.B.2

CCSS.HSA.APR.B.3

Solve the following quadratic:

x² +5x+6

• (-2,0) and (-3,0)

• (2,0) and (3,0)

• (x+2)(x+3)

• (x-2)(x-3)

Solve the following quadratic:

x² + 15x+44

• (-11,0) and (-4,0)

• (11,0) and (4,0)

• (11,0) and (44,0)

• (x+11)(x+4)

Solve the following quadratic:

x² -10x+25

• (x-5)²

• (5,0)

• (-5,0)

• (x+5)²

Solve the following quadratic:

2x² -5x-3

• (3,0) and (-0.5,0)

• (-3,0) and (0.5,0)

• (1.5,0) and (-1,0)

• (-1.5,0) and (1,0)

A powerful computer is purchased for $2,000, but on average loses 20% of its value each year. Write the equation representing the situation.

• y=2,000(1.2)^x

• y=2,000(.8)^x

• y=1.2(2,000)^x

• y=0.8(2,000)^x

Solve the system of equations:

y= -3x

4x+y=2

• (2, -6)

• (-6,2)

• (2,6)

• x+2y=2

Simplify the expression. 
(6x²)(-3x⁵)

• 18x⁷
• -18x⁷
• 18x⁷
• 3x⁷

Tags

CCSS.HSA.APR.A.1