Quadratic Features in Context

Quadratic Features in Context

Let's make sure you understand key features within a context!

Context = a Situation

You know how to find key features, but let's make sure you can connect them back to the story!

Story "Codes"

• "On the ground" means x-intercepts

• "Starting height" is y-intercept

• "Maximum height" is the y-value of vertex

• "Time in air" is asking from x=0 to other x-intercept

• "break even" means when you're making 0 profit but losing 0 money (x-axis!!)

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Let's Identify ALL Features!

• y-intercept (0, 7): he dives from 7 feet above the water

• x-intercepts (1, 0) and (7, 0): times when he hits the water and gets back to the surface

• vertex-min at (4, -9): lowest he travels is 9 feet underwater at 4 seconds

Multiple Choice

Follow the path of the golf ball hit on the moon. How many seconds does it take to reach its highest point?

• 0 seconds

• 8 seconds

• 45 seconds

• 15 seconds

Multiple Choice

Follow the path of the ball hit on Earth to determine the amount of time it takes to hit the ground.

• 0 seconds

• 7.5 meters

• 1.25 seconds

• 2.5 seconds

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That's all, folks!

Any questions?