Quadratic Functions Review

Find the vertex of the quadratic:
y = -2x² + 4x + 3

• (0, 3)
• (-1, 5)
• (1, 5)
• (1, -5)

Find the axis of symmetry for the graph

• x = -1
• x = 1
• x = 3
• x = -1 , 3

Which of the following functions graphs the parabola shown?

• y = x² - 4x + 1
• y = -2x² - 8x - 3
• y = x² - 4x + 5
• y = 2x² + 6x + 1

Find the zeros.

• 0 and 4
• 0 and -4
• 0
• -4

True or false:
The solution, root, x-intercept, and zero of a problem are all the same thing.

• True
• False, because the solution and root are the same but the x-intercept and zero are different
• False, because the x-intercept and root are the same but the zero and solution are different
• False, they are all different

What are the solutions to this equation? (x-3)(x+2)=0

• x=3,-2
• x=-3,2
• x=2,3
• x=3,2

• √3
• ±√3
• -3
• No real solution

ax²+bx+c=0  is the standard form of a quadratic equation.

• True
• False

Solve the equation: 
5x² - 35x + 60 = 0

• x = 3,  -4
• x = -3,  4
• x = 3,  4
• x = -3,  -4

Solve the equation:
4x²+2x - 6 = 0

• x = 1 & -1.5
• x = -1 & 1.5
• x = (-2 ±√92)/8
• x = (-2 ± √100)/8