RE-VIEW 9 Mathematics

1. y = ax^2 + bx + c is ?

• quadratic equation

• quadratic inequalities

• quadratic function

• quadratic term

The graph of y = -2x^2 + 8 goes?

• upward

• downward

• facing x-axis (+)

• facing x-axis (-)

3. The graph of y = x^2 + 8 is?

• 8 points above the origin

• 8 points below the origin

• 8 points to the left

• 8 points to the right

4. The graph of y = (x + 5)^2 is?

• 5 points above the origin

• 5 points below the origin

• 5 points to the left of origin

• 5 points to the right of origin

5. What do you call the graph of a quadratic function?

• parable

• hyperbole

• parabola

• straight line

6. What's the first thing to do to graph quadratic function?

• set a table of values

• plot

• connect the points

• graph

Given y = 5x^2 - 10. What is the value of y if x is 2.

• -10

• -20

• 10

• 4

Where is (-7, 8) located?

• Quadrant I

• Quadrant II

• Quadrant IV

• Quadrant III

What is the vertex form of a = 2, and (-3, -2)?

• y = 2 (x+3)^2 -3

• y = -2 (x+3)^2 - 3

• y = -2 (x+3)^2 + 3

• y = 2 (x+3)^2 - 2

It is written in the form f(x) = a(x-h)^2 + k.

• Standard Form

• Quadratic Form

• Vertex Form

• General Form