Solving Quadratic Inequalities and Systems of Equations

Is (2, 3) part of the solution set? 
y < 2x² -3x+1

• Yes
• No

Which inequality is shown?

• y<2(x-6)²-5
• y<2(x+6)²-5
• y>2(x+6)²-5
• y>2(x-6)²-5

Tags

CCSS.HSF-IF.C.7A

Which inequality is shown?

• y< -x²
• y≤ -x²
• y> -x²
• y≥ -x²

Tags

CCSS.HSF-IF.C.7A

Which inequality is shown?

• y < -5(x-2)(x-4)
• y < -5(x+2)(x+4)
• y > -5(x-2)(x-4)
• y > -5(x+2)(x+4)

Which system of inequalities is shown?

• y< -2(x+4)²+2
  y>½(x+2)²-2
• y< -2(x+4)²+2
  y≥½(x+2)²-2
• y> -2(x+4)²+2
  y<½(x+2)²-2
• y> -2(x+4)²+2
  y≤½(x+2)²-2

What is the solution set to the inequality 0<x²-4x-5

• x<-1 or x>5
• x<-5 or x>1
• -1<x<5
• -5<x<1

Which is a solution to the following system?
y < 6x² + 2x - 1
y ≥ -2x² - x + 3

• (0, 0)
• (0, -3)
• (1, 5)
• (1, -8)

Tags

CCSS.8.EE.C.8B

(2,2) is a solution to the inequality 2x-6y>x²+4x-8

• True
• False

What is the vertex?
y = -2x² + 4x + 3

• (0, 3)
• (-1, 5)
• (1, 5)
• (1, -5)

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

• 2
• -2
• 1
• -1

Tags

CCSS.HSF-IF.C.7A