Time Graphs Check

On which intervals is the graph increasing?

Choose 2.

• (0 , 10)

• [0, 10]

• (0, 60)

Answer explanation

f(x)

intervals of increase, constants, and decrease are AT X values

Choose all that represent where the graph is constant? Choose 3.

• (10 , 15)

• [10, 15]

Answer explanation

f(x)

intervals of increase, constants, and decrease are AT X values

Choose all that represent where the graph is decreasing? Choose 3

• (15, 40)

• [15, 40]

Answer explanation

f(x)

intervals of increase, constants, and decrease are AT X values

• Increasing

• Decreasing

• Constant

Answer explanation

Set notation uses inequality signs.

• True

• False

Interval notation uses Parenthesis or Brackets

• True

• False

Choose all symbols that means a value in the interval is INCLUDED

• [ a, b ]

• ( a , b)

Choose all symbols that means a value in the interval is not included!

• [ a, b ]

• ( a , b)

During what time interval was the temperature decreasing?

Answer explanation

Remember, the x values represent Hours since first reading at 8 am. So when x = 0, it is 8 am, when x = 1, it is 9 am, and so on and so on.

The domain of the graph represents​ (a)  

The range of the graph represents ​ (b)  

• hours since first reading at 8 am
• the temperature

Answer explanation

Remember, the x values represent Hours since first reading at 8 am. So when x = 0, it is 8 am, when x = 1, it is 9 am, and so on and so on.