Quadratics Review

What is the axis of symmetry of the given function?

• y = 1
• y = -1
• x = 1
• x = -1

What is the vertex of the parabola: y=2(x-3)²+4

• (3,4)
• (-3,4)
• (3, -4)
• (-3,-4)

What is the equation of this graph?

• f(x) = (x -5)² + 1
• f(x) = (x - 1)² - 5
• f(x) = (x + 1)² - 5
• f(x) = (x + 5)² +1

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

What piece of information does c identify in the following equation?
y=ax²+bx+c

• Zeroes
• Axis of Symmetry
• Direction
• y-intercept

Compared to the parent function, what effect does the 5 have in  f(x)=5(x+3)²-10 ?

• Vertical stretch
• Vertical compression
• Reflection over x-axis and vertical compression
• Reflection over x-axis and vertical stretch

Make a prediction: What will be the maximum profit?

Rewrite into vertex form: g(x) = -2x² - 4x - 6

• g(x) = -2(x + 1)² - 4

• g(x) = -2(x - 1)² - 4

• g(x) = -2(x - 1)² - 12

• g(x) = -2(x + 1)² - 12

The equation y = x² + 3x - 18 is graphed.  Based on this graph, what are the roots (x-intercepts) of the equation x² + 3x - 18 = 0?

• -3 and 6
• 0 and -18
• 3 and -6
• 3 and -18

What are the x-interepts for the graph of the function:  y = x² - 3x - 10 

• -5, 2
• -5, -2
• 5, -2
• 5, 2