Unit 3 Review Graphs of Polynomials

Find the y-intercept. y = 3x² + 12x - 14

• 3

• 12

• 14

• - 14

Find the vertex of f(x) = x² - 4x + 10

• ( 2 , 6 )

• ( 2 , 22 )

• ( - 2 , 22 )

• ( - 4 , - 6 )

Find the vertex of y = - x² + 6x - 8.

• ( 3 , - 35 )

• ( - 3 , 2 )

• ( - 3 , - 35 )

• ( 3 , 1 )

Name the axis of symmetry:

y = 5x² - 25x + 1

• y = 5/2

• x = 5/2

• x = - 5/2

• y = - 5/2

What is the range of this function:

f(x) = - x² + 4

• [ 4 , ∞ )

• ( - ∞ , 4 ]

• [ - 4 , ∞ )

• ( - ∞ , - 4 ]

f(x) = - 16x² + 64x + 336

What is the vertex?

• ( 1 , 384 )

• ( 2 , 400 )

• ( 3 , 384 )

• ( 5 , 256 )

Find the vertex y = ( x + 17 )² + 21

• ( - 17 , 21 )

• ( 17 , 21 )

• ( - 17 , - 21 )

• ( 17, - 21 )

Name the axis of symmetry:

f(x) = 3( x - 95 )² + 101

• y = 101

• x = 101

• y = 95

• x = 95

Name the y-intercept.

y = 2(x - 8)² - 57

• - 25

• - 57

• 57

• 71

Describe the transformations that y = |x| has undergone to map to y = - 1/2 | x - 8 | 

• Reflection over the x-axis.

• Vertical Stretch

• Vertical Shrink

• Shifts 8 units right

• Shifts 8 units left