A4-Quadratics Mixed Practice 4th pd

• x = -16
• x = 2
• x = 8

What are the solutions to the quadratic equation 2x² − x − 3 ? and .​ ​

• x = 1

What is the domain?

What is the Domain?

(Select 2)

• All real numbers greater than -2 and less than or equal to 2.

• All real numbers greater than -2 & greater than or equal to 2

Suppose a parabola has vertex (-8, -7) and also passes through the point (-7,-4). The equation of the parabola in vertex form is (a)   .

• y = (x + 8)² - 7
• y = 3(x - 8)² - 7
• y = 3(x + 8)² - 7
• y = 3(x + 8)² + 7

Suppose a parabola has vertex (1,-4) and also passes through the point (2,-1). Write the equation of the parabola in vertex form.

• y = (x - 1)² - 4

• y = 3(x - 1)² + 4

• y = 3(x - 1)² - 4

• y = 3(x + 1)² - 4

Suppose a parabola has an axis of symmetry at x=8, a maximum height of 1 and also passes through the point (9,-1). Write the equation of the parabola in vertex form.

• y = -2(x - 8)² + 1

• y = -2(x + 8)² + 1

• y = (x - 8)² + 1

• y = 2(x - 8)² - 1

 $y=-5(x+2)^2-10$  
Convert the equation from vertex form to standard form.

• y = -5x² - 20x - 30

• y = -5x² - 4x - 10

• y = 25x² + 100x + 90

• y = 25x² - 10x - 30

 $y=4(x+2)^2-8$ 

Convert the equation from vertex form to standard form. 

•  $y=4x^2+16x+8$  

•  $y=4x^2+16x+16$  

•  $y=16x^2+64x-8$  

•  $y=16x^2+256x+8$  

What are the zeros of the given parabola?