Applying and analysing quadratic functions

Find the center of a circle with an equation of  $x^2-2x+1+y^2+6y+9=16$  Write the center using parenthesis

 (    ,    )

Find the zero(s) of the function: y = 1.2x² - 6

• -3 and 1.33

• -3.5 and -1.25

• 2.24 only

• -2.24 and 2.24

Find the zeros of the quadratic function  $x^2+14x+62=38$  

•  $\left(12,0\right)\left(2,0\right)$  

•  $\left(6,0\right)\left(4,0\right)$  

•  $\left(-12,0\right)\left(-2,0\right)$  

•  $\left(-6,0\right)\left(-4,0\right)$  

Suppose the vertex of a parabola is at (1, 5). If (5, 21) is another point on this parabola, which of these would be as well?

• (-2, 18)

• (2, 7)

• (-3, 21)

• (7, 25)

Answer the Following Regents Question

• x= -4, 10

• x= -10, 4

State the zeros of the function $f\left(x\right)=3x^2-6x-45$  .

• x=-3, x=3, x=5

• x=-3, x=5

• x=-5, x=3

• no real solutions

Identify the 'a' value for y = 16x² -8x -24.

• 16
• 8
• -8
• -24

Find the Line of Symmetry (just x) : y= -2x² + 8x -5

• x = -3

• x= 2

• x =4

• x = -2

A quadratic function has zeros at x=-1/2 and x=2/3. Write the quadratic function in standard form.

• y=6x² - 5x - 2

• y=6x² - x - 2

• y=(2x+1)(3x-2)

• y=(x + 1/2)(x - 2/3)