UNIT+5

__** 5.1: **__
List the following words and give a mathematical definition in your own words on your wikispace. Remember, you may edit your definitions after we begin the unit.


 * quadratic- A equation that is squared and/or involves the quadratic formula.
 * vertex- Where the parabola begins.
 * x-intercept- Where the line crosses the x axis.
 * y-intercept- Where the line crosses the y axis.
 * increasing- When the x and y values increase.
 * decreasing- When the x and y values decrease.
 * maximum- Largest value.
 * minimum- Smallest value.
 * parabola- a curve where any point is at an equal distance.

__** 5.2: **__
Summarize the similarities and differences between linear functions and quadratic functions. Discuss the graphs, the equations and the properties of each function.

Linear functions is when the line is straight, and the X has a single function. A Quadratic function is where the X function is squared, you can use the quadratic formula for this.

__** 5.5: **__

 * You and your friend are playing a game of tennis. Your friend throws the ball in the air, hitting the ball when it is 3 ft above the court with an initial velocity of 40 ft/sec. The height h(t) of the ball can be modeled by **** the function h(t) = -16t^2+40t+3, where t is the elapsed time in seconds after the dive **** . **

__ **Answer the following questions in your wikispace.** __


 * What shape does the path of the tennis ball make while traveling in the air. a half of a u shape
 * Find h(1). Describe what h(1) means in the context of the problem h(t) is the height of the tennis balls. and the h(9)
 * What is the y-intercept of h(t). In context, what does the y-intercept represent? the y int represents at what point the tennis ball starts, its 40
 * Identify the vertex. Describe in context what the x-coordinate of the vertex represents. Describe in context what the y-coordinate of the vertex represents. vertex is (45,0)
 * What is the x-intercept(s) of h(t). In context what does the x-intercept(s) represent? x is 3, the x intercept is where the ball hits the ground.