Chapter 4 Review

Solve by factoring: x²-2x-35=0

• (-6,-8)
• (-7,5)
• (7,-5)
• (7,8)

Solve by factoring: 3x²-10=x

• (5/2)
• (4/7,8)
• (-5/3,2)
• (5/3,-7)

Solve by taking square root:
2x²-4=28

• (4,-4)
• (65/4,-65/4)
• (7/2)
• (7/2,-7/2)

Solve by taking square root:
-5-2x²=-13

• (3,-3)
• (2,-2)
• (9,-9)
• (5,-5)

Solve using the Quadratic Formula: 4x²+4x-16=0

• (±√38)/2
• (-1±√5)/2
• (-1±√17)/2
• (11≠√141)/2

Identify the vertex from the graph.

• (-4,1)

• (1,-4)

• (4,-1)

• (-1,4)

Identify the axis of symmetry

• x=-1

• y=-4

• x=1

• y=4

What is the arrow pointing at? How can you use this value to determine the minimum/maximum values?

• The arrow is pointing at the y-intercept. The y value of this point is equivalent to the maximum/minimum 
• The arrow is pointing at the vertex. The x value of this point is equivalent to the maximum/minimum
• The arrow is pointing at the solution. The y value of this point is equivalent to the maximum and the x value is equivalent to the minimum
• The arrow is pointing at the vertex. The y value is equivalent to the minimum/maximum

Simplify the following radical: √275

• 5√5
• 5√11
• 11√5
• 5√55

√48

• 4√2
• 6√3
• 4√3
• 4√2