Q2W9

What are the x- intercepts?

• x= 0 and x= -4

• x= 0 and x= 4

• y= 0

• x= 2

The axis of symmetry line passes through which point?

• y-intercept

• any random point

• vertex

• symmetrical point for the vertex

What is the range of the function?
*Hint: Range is all of the y-values included in the function. 

• y≤3

• y≥3

• All real numbers

• -6≤y≤3

What is the vertex of
f(x) = 2(x - 5)² + 12

• (-5, -12)

• (5,-12)

• (5, 12)

• (-5, 12)

Identify the vertex and whether the graph opens up or down.

• (5, 2); opens up

• (5, 2); opens down

• (-5, 2); opens up

• (-5, 2); opens down

Does the following quadratic equation have a maximum or minimum value? How can you tell?
y=x²+2x-3

• Minimum value, because the a value is positive

• Maximum value, because the b value is positive

• Maximum value, because the a value is positive

• Minimum value, because the c value is negative

Find the y-intercept of f(x) = 2x²-2x + 1

• 2

• -2

• 1

• -1

(y + 3)(y + 7)

• y² + 21

• y² + 10y + 21

• y² + 4y - 21

• 2y + 10

Factor: x² + 2x – 3

• (x - 2)(x + 1)

• (x + 1)(x - 3)

• (x + 2)(x - 1)

• (x - 1)(x + 3)

Find the x-intercepts of the equation f(x)=x²+2x-24

• (4,0)  (-6,0)

• (0,-24)

• (6,0)  (-4,0)

• (5,0)  (0,0)