Test 1,1-1,2

Which of the following scenarios would best represent the graph shown?

• Jackson ran to try and catch a bus at a stop near his house. He waited two minutes at the stop but realized he had missed the bus. So he slowly walked home.

• Wesley walked to the end of his driveway to get the newspaper and then turned to walk back inside at the same constant rate.

• Ben walked to a gas station close to his home to get a soda. He talked to some friends at the gas station for a few minutes. His mom called and told him to get home to do his Precal HW. The friend drove Ben back home. Luckily he got home faster in the car than when he walked.

• Jenny and her friend took the escalator to the 2nd story of the mall, shopped there for a while, and took the escalator back down.

Which graph matches the given story:

The population size grows somewhat fast at first, and then the rate of growth slows.

• None of the graphs pictured match the story.

• 
• 
• 
• 

Check ALL the intervals where this graph is decreasing.

• (-∞, -1)

• (-1, 0)

• (0, 1)

• (1, ∞)

On what intervals is f(x) increasing?

• (- ∞, 0) & (2, ∞ )

• (-1, 0) & (2,4)

• (0,2) & (-3, -7)

• (-8, -3) & (-7, 8)

Where is the average rate of change negative?

• (-∞, -1.5) U (2, 4)

• (0.3, 3)

• (-1, 4)

• (-3, 5)

What do we call the point where concavity changes?

• Maximum Point

• Minimum Point

• Inflection Point

The graph of a quadratic function is shown. For what domain is is CONCAVE UP?

On what interval is the average rate of change positive?

• (-1,1) & (3,4)
• (-3,-2)
• (-3, 0) U (2, 4)

• (-1, 1) U ( 3, 4)

Find the point(s) of inflection (if it exists) of the graphed function.

• No point of inflection

• Points 3 and 5

• Points 1, 3, 5 and 7

• Points 1, 2, 3, 4, 5, 6 and 7

• Points 2, 4 and 6

The slope can also be called...

• the function

• the rate of change

• increasing

• positive