Week 1 precalc quadratic review

What are the x-intercept/s of the function? 

• {x|x = 3}
• {x|x =-3,3}
• (3, 0)
• (-3, 0)&(3, 0)

Solve by factoring:3x² + 5x + 2 = 0  

• x = -2/3 and x = -1
• x = -3/2 and x = -1
• x = 2/3 and x = 1
• x = 2/3 and x = -1

A parabola is upside-down when a is:

• negative
• positive
• 0
• infinite

The axis of symmetry line passes through which point?

• y-intercept
• any random point
• vertex
• none of these

What is the formula to find the vertex of a parabola?

• x = -b/2
• x = -b
• x = -b / (2a)
• x = -b / 2

What is the vertex of the quadratic function:
y = x² - 6x + 11?

• (3,2)
• (-3,-2)
• (-3,2)
• (3,-2)

What is the equation for the axis of symmetry?

• y=3
• x=3
• x=5
• x=1

Factor:
 3x²-17x+10

• (x-5)(3x-2)
• (x+5)(3x+2)
• (3x-5)(x-2)
• (x+5)(3x-2)

What are the factors of x²-8x-48

• (x-12)(x+4)
• (x+12)(x-4)
• (x+12)(x+4)
• (x-12)(x-4)

What is the domain of all quadratic functions?

• x ≥ 0
• x ≤ 0
• All real numbers