Post EOC Activity 3

Which of the following represents the range of the quadratic function graphed below?

• y ≤ 9

• y ≥ 9

• y ≤ -1

• y ≥ -1

$f\left(x\right)=5x-12$ What is $f\left(-4\right)$

• -32

• -3

• -12

• 3

Factor
3v² - 4v - 7

• (3v-7)(v+1)
• 3(v-7)(v-1)
• (3v+1)(v-9)
• (3v+1)(v-10)

Factor:
6x² – 19x – 7 

• (2x +7)(3x – 1)
• (1x – 1)(6x+7)
• (2x – 7)(3x+1)
• (6x – 7)(1x+1)

Which quadratic function is represented by the graph?

• y = 2(x - 4)² + 5
• y = 2(x + 4)² + 5
• y = -2(x - 4)² + 5
• y = -2(x + 4)² + 5

A parabola is upside-down when a is:

• negative
• positive
• 0
• infinite

What are the solutions to  $2x^2+7x+9=3$  

• -2 and 1

• no solution

• -2 only

• -2 and -4

Solve by factoring: x² - 9x + 20 = 0

• x = -4 and x = -5
• x = 20 and x = -9
• x = 4 and x = 5
• x = -4 and x = 5

• 3x^-1y^-5

• 3x²y

• 3xy⁵

• -3x³y⁷

What are the green dots called?

• axis of symmetry
• vertex
• parabola
• roots or x-intercepts