Quadratics

What is the green dot on the parabola called?

• maximum

• minumum

• roots

• zeros

Given the equation y = 3(x + 5)² - 4,

what is the vertex of the parabola?

• (5, -4)

• (-5, -4)

• (-15, -4)

• (15, -4)

The axis of symmetry line passes through which point?

• y-intercept

• any random point

• vertex

• symmetrical point for the vertex

What is the green dashed line called?

• roots or x-intercepts

• parabola

• axis of symmetry

• line of dashes

What causes the graph of y = x² to open downward?

• multiply the x² by a fraction

• multiply the x² by a decimal

• multiply the x² by a negative number

• multiply the x² by a number greater than 1

• (-2,-11)

• (2,5)

• (-4,-7)

• (-2,-19)

• (1.25, -2.125)

• (-1.25, 10.375)

• (-1.25,-3)

• (1.25, -3.688)

Write the equation in vertex form.  $y=x^2+6x+10$  
 

•   $y=\left(x+3\right)^2+1$  

•   $y=\left(x+9\right)^2+1$  

•  $y=\left(x-3\right)^2+19$   

•   $y=\left(x+6\right)^2+10$  

Write the equation in vertex form.  $y=2x^2-8x+3$  
 

•   $y=2\left(x-2\right)^2-5$  

•   $y=2\left(x-2\right)^2+11$  

•  $y=2\left(x-4\right)^2-5$   

•   $y=2\left(x-4\right)^2+11$  

• -18

• -19

• -20

• -17