Homework Questions.

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Homework Questions

Warm Up Determine whether each quadratic function contains an absolute minimum or maximum minimum

12.3A Projectile Motion SWBAT develop the function of a projectile motion to analyze the function for its maximum, y-intercept and x-intercepts in the context of a real world situation.

Model Rocket

Suppose the model rocket has an initial velocity of 160 feet per second.

6a. How can we identify the x-intercepts while looking at the graph of a quadratic function? What is known about the y- coordinate of x-intercepts? b. Determine the x-intercepts of g(t). c. What information do the x-intercepts give us about he launching of the rocket? x

Reflection 1. Describe the general function of a projectile: a. The function: b. What is the v0 in context of a projectile situation c. What is the h0 in context of a projectile situation 2. How can you find the x-intercepts of a given function? 3. What do the x-intercepts repesent in the context of a projectile motion problem?

Homework Questions

Warm Up Write the function that represents each real-world scenario. A model rocket is launched from the ground with an initial velocity of 150 feet per second. A baseball is thrown into the air from a height of 6 feet with an initial vertical velocity of 19 feet per second.

12.3B Domain, Range, and Interval Notation SWBAT analyze the graph of a quadratic function to identify the domain, range, zeros, and the intervals of increase and decrease.

Domain and Range

Interval Notation

Zero to 5. 10, the x-intercept. (0, 5) (5, 10)

Intervals of Increase and Decrease (-∞, ∞) (-∞, 2]

(-∞, ∞) [-1/4, ∞)

(-∞, ∞) [-2.25, ∞)

(-∞, ∞) [-.25, ∞)

Reflection