Quadratics - General Knowledge Review

Which of the following equations is in vertex form?

(Check all that apply)

•  $y=3\left(x-2\right)²+5$  

•  $y=x²+2$  

•  $y=x²+5x-12$  

•  $y=3\left(x-5\right)\left(x+8\right)$  

•  $y=-1\left(x-4\right)²$  

What is the axis of symmetry of  $y=-1\left(x+5\right)²-7$  ? 

What is the vertex of  $y=3\left(x-5\right)²+3$  ?

• (3,3)

• (5,3)

• (3,5)

• (-5,3)

Does the graph open up or down?  $y=-2\left(x+3\right)\left(x-5\right)$  

• Up

• Down

What are the roots of the equation  $y=-16\left(x+3\right)\left(x-8\right)$  ?
Check all that apply.

• (3,0)

• (-8,0)

• (-3,0)

• (8,0)

The equation  $y=\left(x-4\right)\left(x+10\right)$  has x-intercepts at x=4 and x = -10, what is the vertex? 

• (4, -10)

• (-3, -49)

• (3, -13) 

• There isn't one.

The equation  $h\left(t\right)=-16t²+12t+3$  represents the path of a projectile. 


What are the units the problem is measured in?

• meters per second

• feet per second

• meters per minute

• feet per second

The equation  $h\left(t\right)=-16t²+12t+3$  represents the path of a projectile. 


What does h(t) represent?

• time

• height at a certain point in time

The equation  $h\left(t\right)=-16t²+12t+3$  represents the path of a projectile. 


What is the initial velocity? 

• -16

• 12

• 3

The equation  $h\left(t\right)=-16t²+12t+3$  represents the path of a projectile. 


What was the height the object started at? 

• -16

• 12

• 3