Quadratic Functions Test Practice

Find the vertex:     $f\left(x\right)=x^{2\ }+\ 4x\ +\ 1$  

• ( -2, -3 )

• ( 2, 13 )

• ( -4, -1 )

• ( 4, 1 )

Write the equation for the axis of symmetry:  $f\left(x\right)=\left(x-4\right)\left(x-10\right)$  

• x = -7

• x = 4

• x = 7

• x = 10

What is the vertex?  $f\left(x\right)=2\left(x-3\right)^{2\ }+\ 5$  

• ( -3, -5 )

• ( -3, 5 )

• ( 3, -5 )

• ( 3, 5 )

Does the function have an absolute minimum or an absolute maximum?  $f\left(x\right)=-3\left(x+1\right)^{2\ }-\ 2$  

• Minimum

• Maximum

• Not enough information

• (3,0) and (-5,0)

• (-3,0) and (5,0)

• (0,-15)

• (-1,-16)

Tags

CCSS.HSF-IF.C.7C

• -3

• 3

• -1

• 1

What is the y - intercept?  $f\left(x\right)\ =\ 2x^{2\ }+3x\ -\ 10$  

• ( 0, 10 )

• ( 10, 0 )

• ( -10, 0 )

• ( 0, -10 )

Tags

CCSS.HSF-IF.C.7A

What is the y-intercept?  $f\left(x\right)\ =\ 2\left(x\ -\ 1\right)\left(x\ +\ 3\right)$  

• ( 0, -3 )

• ( 0, -6 )

• ( 1, -3 )

• ( 0, 6 )

Tags

CCSS.HSF-IF.C.7A

A ball thrown in the air can be modeled by $h\left(t\ \right)=-16t^{2\ }+42t+6$  At what time does the ball reach the maximum height?

• 1.3 seconds

• 6 seconds

• 42 seconds

• 336 seconds

A ball thrown in the air can be modeled by $h\left(t\right)=-16t^{2\ }+42t\ +\ 6$  What is the maximum height the ball reaches?

• 6 feet

• 42 feet

• 33.6 feet

• 1.4 feet