BB-69

Mithun Das
12/6/07
BB-69.

Write the range and domain for each of the following graphs.

• To find the domain first you need to look at the x values on the graphs. In each graph you need to check what x values the graph goes through.

• To find the range you need to look the y values on the graphs. In each graph you need to check what y values the graph goes through.

1. In the first graph the x-values that represent the function are real numbers.
So, the domain consists of real numbers. The domain is (-∞.∞)
All y–values greater than or equal to –1 represent the function.
So, the range is y –1. The range is [-1,∞)
2. In the second graph the x values that function are real numbers.
So, the domain consists of real numbers. The domain is (-∞.∞)
The range is y–values less than or equal to 1 represent the function.
So, the range is y ≥1. The is (-∞, 1]
3. In the third graph the x values that represent the function are real numbers.
So, the domain consists of real numbers. The domain is (-∞,∞)
The y–values less than or equal to 0 represent the function.
So, the range is y 0. The range is (-∞,0]